Polish phonology#Historical development

File:Polish vowel chart (with allophones).svg, from {{Harvcoltxt|Rocławski|1976|p=75}}. Main allophones (in black) are in broad transcription, and positional allophones (in red and green) are in narrow transcription. Positional variants (in red) appear in palatal contexts.]]

The Polish vowel system consists of six oral sounds. Traditionally, it was also said to include two nasal monophthongs,{{sfnp|Rocławski|1976|p=84}} with Polish considered the last Slavic language that had preserved nasal sounds that existed in Proto-Slavic. However, recent sources present for modern Polish a vowel system without nasal vowel phonemes, including only the aforementioned six oral vowels.{{Harvcoltxt|Sawicka|1995|p=118}}, {{Harvcoltxt|Ostaszewska|Tambor|2000|pp=137–139}}, {{Harvcoltxt|Jassem|2003|pp=104–105}} and {{Harvcoltxt|Wiśniewski|2007|pp=188–191}}{{sfn|Sawicka|1995|p=120|ps=, "A system with synchronic nasal vowels exists vestigially in the speech of some people [...] (e.g. Jerzy Waldorff or Edward Dziewoński)." Both speakers are 20 years dead.}}

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{{notelist}}

• {{IPA|/i/}} is close front unrounded {{IPAblink|i}}.{{sfnp|Jassem|2003|p=105}}{{sfnp|Gussmann|2007|p=2}} It is somewhat more open than cardinal {{IPAblink|i}}.{{Harvcoltxt|Jassem|1971|p=234}} and {{Harvcoltxt|Jassem|1974|p=71}}
• {{IPA|/ɨ/}} ranges from almost close-mid near-front {{IPAblink|ɪ|ɪ̞}} to (advanced) close-mid central {{IPAblink|ɘ|ɘ̟}}{{sfn|Gussmann|2007|p=1|ps=, "[A] case in point is the Polish vowel {{IPA|[ɨ]}} in ty {{IPA|[tɨ]}} 'you, sg.'. Karaś and Madejowa (1977) and Jassem (1983) use this symbol to denote a vowel which is described as almost half close, retracted to (almost) central position."}} or alternatively from near-close near-front unrounded {{IPAblink|ɪ|}} to close-mid central unrounded {{IPAblink|ɘ}}.{{sfnp|Rybka|2015|p=79}} These descriptions are essentially equivalent. Traditionally, {{IPAblink|ɨ}} is used in narrow transcriptions (as if close central unrounded). Older sources describe this vowel as follows:
• According to {{Harvcoltxt|Jassem|1971|p=234}}, it is intermediate between cardinal {{IPAblink|e}} and {{IPAblink|ɨ}}, but closer to the latter one. Alternatively, it is intermediate between cardinal {{IPAblink|e}} and {{IPAblink|ɤ}}, but closer to the former.{{sfnp|Jassem|1974|p=71}} He places it on a vowel chart closer to {{IPAblink|ɪ|}}.Jassem's description is often cited, e.g. {{Harvcoltxt|Bałutowa|1992|p=27}}, {{Harvcoltxt|Dukiewicz|1995|p=26}}, {{Harvcoltxt|Wiśniewski|2007|p=69}}
• According to {{Harvcoltxt|Wierzchowska|1971|p=125,130}} it is articulated with the centre of the tongue raised up and moved somewhat forward; the pharynx also widens. She places it on a vowel chart closer to {{IPAblink|ɘ}}.
• According to {{Harvcoltxt|Rocławski|1976|p=75,105}}, it is near-close central unrounded {{IPAblink|ɪ̠}}, with a close-mid central unrounded {{IPAblink|ɘ̟}} allophone being optional before {{IPA|/r/}} and in some unstressed positions. A realization close to near-close near front unrounded {{IPAblink|ɪ}} is present in northeastern dialects.
• {{IPA|/u/}} is close back rounded {{IPAblink|u}}.{{sfnp|Jassem|2003|p=105}}{{sfnp|Gussmann|2007|p=2}} It is somewhat more open than cardinal {{IPAblink|u}}, {{IPAblink|ɯ}} and intermediate between them in terms of labialization.{{Harvcoltxt|Jassem|1971|p=234}} and {{Harvcoltxt|Jassem|1974|p=71}}
• There is no complete agreement about the realization of {{IPA|/u/}} between soft consonants:
• According to {{Harvcoltxt|Wiśniewski|2007|p=72}}, it is close back somewhat fronted {{IPAblink|u|u̟}}.
• According to {{Harvcoltxt|Sawicka|1995|p=123}}, it is close central {{IPAblink|ʉ|ʉ}}.
• According to {{Harvcoltxt|Rocławski|1976|p=116}}, it is close centralized {{IPAblink|ü|ü}}.

• {{IPA|/ɛ/}} is open-mid front unrounded {{IPAblink|ɛ}}.{{sfnp|Jassem|2003|p=105}}{{sfnp|Gussmann|2007|p=2}} It is somewhat more open than cardinal {{IPAblink|ɛ}}.{{Harvcoltxt|Jassem|1971|p=234}} and {{Harvcoltxt|Jassem|1974|p=71}}
• There is no complete agreement about the realization of {{IPA|/ɛ/}} between soft consonants:
• According to {{Harvcoltxt|Jassem|2003|p=105}}, {{Harvcoltxt|Sawicka|1995|p=122}} and {{Harvcoltxt|Wiśniewski|2007|p=71}}, it is close-mid front unrounded {{IPAblink|e}}.
• According to {{Harvcoltxt|Rocławski|1976|p=108}}, it is either mid front unrounded {{IPAblink|ɛ̝}} or mid retracted front unrounded {{IPAblink|ɛ̝|ɛ̠}}.
• According to the British phonetician John C. Wells, it is often noticeably centralized {{IPAblink|ɛ|ɛ̈}}: somewhat closer to a central vowel {{IPAblink|ɜ}} in palatal contexts.{{cite web|first=John C.|last=Wells|date=19 December 2011|title=the Polish way out|url=http://phonetic-blog.blogspot.com/2011/12/polish-way-out.html|website=John Wells's phonetic blog|access-date=1 August 2015|url-status=live|archive-url=https://web.archive.org/web/20150723071300/http://phonetic-blog.blogspot.com/2011/12/polish-way-out.html|archive-date=23 July 2015}}
• {{IPA|/ɔ/}} is open-mid back.{{sfnp|Jassem|2003|p=105}}{{sfnp|Gussmann|2007|p=2}}{{sfnp|Rocławski|1976|pp=75, 112–113}} It is somewhat more open than cardinal {{IPAblink|ɔ}}, {{IPAblink|ʌ}} and intermediate between them in terms of labialization.{{Harvcoltxt|Jassem|1971|p=234}} and {{Harvcoltxt|Jassem|1974|p=71}}
• There is no complete agreement about the rounding of {{IPA|/ɔ/}}:
• According to {{Harvcoltxt|Rocławski|1976|p=113}}, it is usually somewhat rounded {{IPAblink|ɔ̜}}, but sometimes, it is pronounced with neutral lips {{IPAblink|ʌ}}. In the latter case, the lack of rounding is compensated for by a stronger retraction of the tongue.
• According to {{Harvcoltxt|Sawicka|1995|p=119}}, citing {{Harvcoltxt|Wierzchowska|1967|p=109}}, it is unrounded {{IPAblink|ʌ}}.
• According to {{Harvcoltxt|Gussmann|2007|p=2}}, it is simply "rounded" {{IPAblink|ɔ}}.
• There is no complete agreement about the realization of {{IPA|/ɔ/}} between soft consonants:
• According to {{Harvcoltxt|Rocławski|1976|p=113}}, it can be any of the following: open-mid centralized back rounded {{IPAblink|ɔ̈}}, raised open-mid back rounded {{IPAblink|ɔ̝}} or mid advanced back rounded {{IPAblink|ɔ̝|ɔ̟}}{{sfnp|Rocławski|1976|pp=75, 113}}
• According to {{Harvcoltxt|Wiśniewski|2001|p=72}}, it is close-mid advanced back rounded {{IPAblink|o|o̟}}.
• According to {{Harvcoltxt|Sawicka|1995|p=122}}, it is close-mid central rounded vowel {{IPAblink|ɵ|ɵ}}.
• According to {{Harvcoltxt|Wiśniewski|2001|p=72}}, a close-mid back {{IPAblink|o}} is a free variant before {{IPAblink|w}}.

• {{IPA|/a/}} is open central unrounded {{IPAblink|ä}}. According to most sources,For example, {{Harvcoltxt|Jassem|1971|p=234}}, {{Harvcoltxt|Jassem|1974|p=71}}, {{Harvcoltxt|Jassem|2003|p=105}}, {{Harvcoltxt|Rocławski|1976|p=75}} and {{Harvcoltxt|Wiśniewski|2007|p=72}} it is intermediate between cardinal {{IPAblink|a}} and {{IPAblink|ɑ}}. However, {{Harvcoltxt|Gussmann|2007}} describes it broadly as open front unrounded {{IPAblink|a}}. Traditionally, {{IPAblink|a}} is used even in otherwise narrow transcriptions.
• There is no complete agreement about the realization of {{IPA|/a/}} between soft consonants:
• According to {{Harvcoltxt|Jassem|2003|p=106}}, it is open front unrounded {{IPAblink|a}}.
• According to {{Harvcoltxt|Sawicka|1995|p=122}}, it is open front unrounded {{IPAblink|a}} or even near-open front unrounded {{IPAblink|æ}}. She uses {{IPAblink|ɑ̈|ɑ}} for the main central allophone.
• According to {{Harvcoltxt|Wiśniewski|2001|p=70}}, it is near-open central unrounded {{IPAblink|ɐ|ɐ}}.
• According to {{Harvcoltxt|Rocławski|1976|p=110}}, it is near-open near-front unrounded {{IPAblink|æ|æ̞̈}}.

The vowels {{IPA|/ɨ/}} and {{IPA|/i/}} have largely complementary distribution. Either vowel may follow a labial consonant, as in mi ('to me') and my ('we'). Elsewhere, however, {{IPA|/i/}} is usually restricted to word-initial position and positions after alveolo-palatal consonants and approximants {{IPA|/l, j/}}, while {{IPA|/ɨ/}} cannot appear in those positions (see § Hard and soft consonants below). Either vowel may follow a velar fricative {{IPA|/x/}} but after velar {{IPA|/k, ɡ/}} the vowel {{IPA|/ɨ/}} is limited to rare loanwords e.g. kynologia {{IPA|/ˌkɨnɔˈlɔɡja/}} ('cynology') and gyros {{IPA|/ˈɡɨrɔs/}} ('gyro').{{sfnp|Gussmann|2007|p=101}} Dental, postalveolar consonants and approximants {{IPA|/r, w/}} are followed by {{IPA|/ɨ/}} in native or assimilated words. However, {{IPA|/i/}} appears outside its usual positions in some foreign-derived words, as in chipsy {{IPA|/ˈt͡ʂipsɨ/}} ('potato chips') and tir {{IPA|/tir/}} ('large lorry', see TIR). The degree of palatalization in these contexts is weak.{{sfnp|Sawicka|1995|p=148}} In some phonological descriptions of Polish that make a phonemic distinction between palatalized and unpalatalized consonants, {{IPAblink|ɨ}} and {{IPAblink|i}} may thus be treated as allophones of a single phoneme. In the past, {{IPA|/ɨ/}} was closer to {{IPAblink|ɪ}}, which is acoustically more similar to {{IPAblink|i}}{{citation needed|date=June 2021}}.

Nasal vowels do not feature uniform nasality over their duration. Phonetically, they consist of an oral vowel followed by a nasal semivowel {{IPAblink|w̃}} or {{IPAblink|j̃}} (są is pronounced {{IPA|[sɔw̃]}}, which sounds closer to Portuguese são {{IPA|[sɐ̃w̃]}} than French sont {{IPA|[sɔ̃]}} – all three words mean '(they) are'). Therefore, they are phonetically diphthongs.{{Harvcoltxt|Gussmann|2007|p=2}}, citing {{Harvcoltxt|Biedrzycki|1963}}, {{Harvcoltxt|Biedrzycki|1978}}, {{Harvcoltxt|Wierzchowska|1971|p=135}}. (For nasality following other vowel nuclei, see § Allophony below.)

The nasal phonemes {{IPA|/ɔ̃, ɛ̃/}} appear in older phonological descriptions of Polish e.g. {{Harvcoltxt|Stieber|1966}}, {{Harvcoltxt|Rocławski|1976|p=84}}, {{Harvcoltxt|Wierzchowska|1980|p=51}}. In more recent descriptions the orthographic nasal vowels ą, ę are analyzed as two phonemes in all contexts e.g. {{Harvcoltxt|Sawicka|1995}}, {{Harvcoltxt|Wiśniewski|2007|}}. Before a fricative and in word-final position (in the case of ą) they are transcribed as an oral vowel {{IPA|/ɔ, ɛ/}} followed by a nasal consonant {{IPA|/ɲ, ŋ/}}{{Harvcoltxt|Sawicka|1995|p=135}} or {{IPA|/j̃, w̃/}}.{{Harvcoltxt|Jassem|2003|p=104}} and {{Harvcoltxt|Wiśniewski|2007|p=192}} Under such an analysis, the list of consonantal phonemes is extended by a velar nasal phoneme {{IPA|/ŋ/}} or by two nasal approximants {{IPA|/j̃/}}, {{IPA|/w̃/}}.

If analyzed as separate phonemes, nasal vowels do not occur except before a fricative and in word-final position.{{Citation needed|date=May 2021|reason=This does not agree with Racławski 1976, p. 119}} When the letters ą and ę appear before stops and affricates, they indicate an oral {{IPA|/ɔ/}} or {{IPA|/ɛ/}} followed by a nasal consonant homorganic with the following consonant. For example, kąt ('angle', 'corner') is {{IPA|/kɔnt/}}, gęba ('mouth') is {{IPA|/ˈɡɛmba/}}, pięć ('five') is {{IPA|/pjɛɲt͡ɕ/}} and bąk ('bumble bee') is {{IPA|/bɔŋk/}},{{sfnp|Gussmann|2007|pp=2–3}} as if they were spelled *kont, *gemba, *pieńć and *bonk. Before {{IPA|/l/}} or {{IPA|/w/}}, nasality is lost altogether, and ą and ę are pronounced as oral {{IPAslink|ɔ}} or {{IPAslink|ɛ}}. The {{IPA|/ɛŋ/}} sequence is also denasalized to {{IPA|/ɛ/}} in word-final position, as in {{wikt-lang|pl|będę}} {{IPA|/ˈbɛndɛ/}} 'I will be'.

Distinctive vowel length was inherited from late Proto-Slavic, although in Polish only some pretonic long vowels and vowels with the neoacute retained length. Additional vowel lengths were introduced in Proto-Polish (as in other West Slavic languages) as a result of compensatory lengthening when a yer in the next syllable disappeared according to Havlík's law. In Polish this only happened in penultimate syllables (which thus became final syllables) before a voiced consonant (in other Slavic languages where a similar process occurred this could be more general).{{sfn|Kuraszkiewicz|1972|pp=78–80}}{{sfn|Rospond|1973|pp=65–67}}{{sfn|Mańczak|1983|pp=25–26}}{{sfn|Stieber|1966|pp=11–13,17,23–26}}

The resultant system of vowel lengths was similar to what is today preserved in Czech and to a lesser degree in Slovak, although the distribution of the sounds often differed (for example in Czech the old acute also lengthened vowels). In the emerging modern Polish, however, the long vowels were shortened again but sometimes (depending on dialect) with a change in quality (the vowels tended to become higher). The latter changes came to be incorporated into the standard language only in the case of long o and the long nasal vowel. The vowel shift may thus be presented as follows:{{sfn|Kuraszkiewicz|1972|pp=77–81}}{{sfn|Rospond|1973|pp=67–71,84–86}}{{sfn|Stieber|1966|pp=20–21,29–31}}

• long oral {{IPA|/aː/}} > short oral {{IPA|/a/}} (certain dialects: {{IPA|/ɒ/}}, {{IPA|/ɔ/}})
• long oral {{IPA|/eː/}} > short oral {{IPA|/ɛ/}} (certain dialects: {{IPA|/e/}}, {{IPA|/ɨ/}} or {{IPA|/i/}})
• long oral {{IPA|/ɨː/}} or {{IPA|/iː/}} > short oral {{IPA|/ɨ/}} or {{IPA|/i/}}
• long oral {{IPA|/oː/}} > short oral {{IPA|/u/}} (certain dialects: {{IPA|/o/}}), written ó
• long oral {{IPA|/uː/}} > short oral {{IPA|/u/}}, written u
• long nasal {{IPA|/ãː/}} > short nasal {{IPA|/ɔ̃/}}, written ą

The {{IPA|/u/}} that was once a long {{IPA|/oː/}} is still distinguished in script as ó, except in some words which were later respelled, such as {{lang|pl|bruzda}}, {{lang|pl|dłuto}}, {{lang|pl|pruć}} (instead of etymological {{lang|pl|brózda}}, {{lang|pl|dłóto}}, {{lang|pl|próć}}).

In most circumstances, consonants were palatalized when followed by an original front vowel, including the soft yer (ь) that was often later lost. For example: *dьnь became dzień ('day'), while *dьnьmъ became dniem ('day' instr.).

Nasal vowels *ę and *ǫ of late Proto-Slavic merged (*ę leaving a trace by palatalizing the preceding consonant) to become the medieval Polish vowel {{IPA|/ã/}}, written ø. Like other Polish vowels, it developed long and short variants. The short variant developed into present-day {{IPA|/ɛ̃/}} ę, while the long form became {{IPA|/ɔ̃/}}, written ą, as described above. Overall:

• Proto-Slavic *ę > ię when short, ią when long (where the i represents palatalization of the preceding consonant)
• Proto-Slavic *ǫ > ę when short, ą when long

The historical shifts are the reason for the alternations o:ó and ę:ą commonly encountered in Polish morphology: *rogъ ('horn') became róg due to the loss of the following yer (originally pronounced with a long o, now with {{IPA|/u/}}), and the instrumental case of the same word went from *rogъmъ to rogiem (with no lengthening of the o). Similarly, *dǫbъ ('oak') became dąb (originally with the long form of the nasal vowel), and in the instrumental case, *dǫbъmъ the vowel remained short, causing the modern dębem.

Polish dialects differ particularly in their realization of nasal vowels, both in terms of whether and when they are decomposed to an oral vowel followed by a nasal consonant and in terms of the quality of the vowels used.

Also, some dialects preserve nonstandard developments of historical long vowels (see previous section); for example, a may be pronounced with {{IPA|[ɔ]}} in words in which it was historically long.

The Polish consonant system is more complicated; its characteristic features include the series of affricates and palatal consonants that resulted from four Proto-Slavic palatalizations and two further palatalizations that took place in Polish and Belarusian.

The consonant phonemes of Polish are as follows:{{sfnp|Rocławski|1976|pp=130–181}}{{sfnp|Sawicka|1995|pp=116–117}}{{sfnp|Rocławski|2010|pp=197–199}}

{{notelist}}

The tongue shape of the postalveolar sounds is similar to the shape postalveolar approximant {{IPAblink|ɹ̠}} (one of the realizations of the English {{IPA|/r/}} phoneme, see also Pronunciation of English /r/). The alveolo-palatals are pronounced with the body of the tongue raised to the hard palate but a greater area of the front of the tongue is raised close to the hard palate compared to the English palato-alveolar sounds. The series are known as "rustling" ({{lang|pl|szeleszczące}}) and "soughing" ({{lang|pl|szumiące}}) respectively; the equivalent alveolar series ({{vr|s, z, c, dz}}) is called "hissing" ({{lang|pl|syczące}}).

Polish contrasts affricates and stop–fricative clusters{{sfnp|Gussmann|2007|p=7}} by the fricative components being consistently longer in clusters than in affricates.{{sfnp|Zagórska Brooks|1964|p=209}}{{sfnp|Dukiewicz|1995|p=49}} Stops in clusters may have either a plosive release accompanied by a weak aspiration or a fricated release (as in an affricate) depending on the rate of speech and individual speech habits.{{sfnp|Sawicka|1995|p=150}}{{sfnp|Rybka|2015|pp=89–91}}

• {{Audio|Pl-czysta.ogg|{{lang|pl|czysta}}|help=no}} {{IPA|[ˈt͡ʂɨsta]}} ('clean' fem.) vs. {{Audio|Pl-trzysta.ogg|{{lang|pl|trzysta}}|help=no}} {{IPA|[ˈt̺ʰʂˑɨsta]}} or {{IPA|[ˈt̺ʂˑɨsta]}}"[https://wsjp.pl/do_druku.php?id_hasla=37654&id_znaczenia=4765873 trzysta]", Wymowa: [tszysta] pot. [czszysta] (Pronunciation: [tszysta] colloquially [czszysta]) Wielki Słownik Języka Polskiego (20 Sep 2021) ('three hundred').
• {{Audio|Pl-dżem-2.ogg|{{lang|pl|dżem}}|help=no}} {{IPA|[ˈd͡ʐɛm]}} ('jam') with vs. {{Audio|Pl-drzem.ogg|{{lang|pl|drzem}}|help=no}} {{IPA|[d̺ʱʐˑɛm]}} or {{IPA|[ˈd̺ʐˑɛm]}}"[https://wsjp.pl/do_druku.php?id_hasla=4205&id_znaczenia=0 drzemać] {{Webarchive|url=https://web.archive.org/web/20210920212705/https://wsjp.pl/do_druku.php?id_hasla=4205&id_znaczenia=0 |date=2021-09-20 }}", Wymowa: [d-rzemać] lub [dż-żemać] (Pronunciation: [d-rzemać] or [dż-żemać]) Wielki Słownik Języka Polskiego (20 Sep 2021) ('take a nap' imper. sing.).

Both realizations of stop-fricative clusters are considered correct and typically respelled as tsz, d-ż and czsz, dżż respectively in normative descriptions of Polish pronunciation.{{sfnp|Dunaj|2006|p=170}} The distinction is lost in colloquial pronunciation in south-eastern Poland both being realized as simple affricates as in some Lesser Polish dialects. According to {{Harvcoltxt|Sawicka|1995|p=150}}, {{Harvcoltxt|Dunaj|2006|p=170}}, such a simplification is allowed in the standard language variety only before another consonant or before a juncture, e.g. {{lang|pl|trzmiel}} {{IPA|/tʂmjɛl/}} or {{IPA|/t͡ʂmjɛl/}} ('bumblebee'), {{lang|pl|patrz}} {{IPA|/patʂ/}} or {{IPA|/pat͡ʂ/}} ('look', imper. sing.).

For the possibility of an additional velar fricative {{IPA|/ɣ/}}{{sfnp|Sawicka|1995|p=143}} for {{angbr|h}}, see § Dialectal variation below. On the same grounds as for {{IPA|/xʲ/}} {{Harvcoltxt|Sawicka|1995|p=146}} gives {{IPA|/ɣʲ/}} a phonemic status for speakers who have {{IPA|/ɣ/}} in their system.

• {{IPA|/m, p, b, f, v/}} are palatalized {{IPA|[{{IPAplink|mʲ}}, {{IPAplink|pʲ}}, {{IPAplink|bʲ}}, {{IPAplink|fʲ}}, {{IPAplink|vʲ}}]}} before {{IPA|/i, j/}}.
• {{IPA|/m, n/}} have a labiodental allophone {{IPAblink|ɱ}}, which occurs before labiodental consonants (as in {{lang|pl|symfonia}} 'symphony' or {{lang|pl|konfiguracja}} 'configuration').{{sfnp|Buczek-Zawiła|2014|p=9}} Before fricatives, orthographic nasal consonants m, n may be realized as nasal approximants {{IPA|[{{IPA|w̃}} {{IPAplink|j̃}}]}}, analogous to {{IPA|/ŋ, ɲ/}} below. This occurs in loanwords, and in free variation with the typical consonantal pronunciation (e.g. {{lang|pl|instynkt}} {{IPA|[ˈiw̃stɨŋkt⁓ˈinstɨŋkt]}} 'instinct').{{Harvcoltxt|Gussmann|2007|p=3}}, citing {{Harvcoltxt|Dukiewicz|1995|pp=32–33}}
• {{IPA|/n, t, d, t͡s, d͡z, s, z/}} are denti-alveolar {{IPA|[{{IPAplink|n̪, t̪, d̪, t̪͡s̪, d̪͡z̪, s̪, z̪}}]}} except before {{IPA|/i, j/}} and postalveolar consonants. They are pronounced with the tip of the tongue very close or touching to the upper front teeth and partially the front of the alveolar ridge.{{sfnp|Wierzchowska|1971|pp=155,157,159,160}} In western and northern Poland, {{IPA|[n̪]}} is maintained in native words across a morpheme boundary in nk, e.g. {{lang|pl|sionka}} ('a small hallway') {{IPA|[ˈɕɔn̪ka]}} contrasts with {{lang|pl|siąka}} ('((s)he sniffs') {{IPA|[ˈɕɔŋka]}}. In other parts of Poland, the contrast is neutralized towards {{IPA|/ŋ/}}, i.e. {{IPA|[ˈɕɔŋka]}} is used for both.{{sfnp|Strutyński|2002|pp=80}} In foreign words {{vr|nk, ng}} represent {{IPA|/ŋk, ŋɡ/}}.
• {{IPA|/t, d, t͡s, d͡z, s, z/}} are palatalized laminal alveolar {{IPA|[{{IPAplink|t̻ʲ, d̻ʲ, t̻͡s̻ʲ, d̻͡z̻ʲ, s̻ʲ, z̻ʲ}}]}} before {{IPA|/i, j/}} in recent borrowings. They are pronounced with the blade of the tongue very close or touching the alveolar ridge.{{sfnp|Wierzchowska|1971|pp=185,187}}
• {{IPA|/t, d/}} are apical alveolar {{IPA|[{{IPAplink|t̺}}, {{IPAplink|d̺}}]}}{{sfnp|Rocławski|1976|p=179}}{{sfnp|Wierzchowska|1971|p=163}}{{sfnp|Sawicka|1995|p=150}} before apical postalveolar {{IPA|/t͡ʂ, d͡ʐ, ʂ, ʐ/}} while {{IPA|/n/}} is apical alveolar {{IPA|[{{IPAplink|n̺}}]}}{{sfnp|Rocławski|1976|pp=136}}{{sfnp|Wierzchowska|1971|p=167}}{{sfnp|Sawicka|1995|p=134}} before {{IPA|/t͡ʂ, d͡ʐ, ʂ, ʐ/}}.
• {{IPA|/t, d/}} can be assimilated to affricates {{IPA|/ts, dz/}} before {{IPA|/ts, dz, s, z/}}, {{IPA|/t͡ʂ, d͡ʐ/}} before {{IPA|/t͡ʂ, d͡ʐ, ʂ, ʐ/}} and {{IPA|/t͡ɕ, d͡ʑ/}} before {{IPA|/t͡ɕ, d͡ʑ, ɕ, ʑ/}}.{{sfnp|Sawicka|1995|pp=151–152}}{{sfnp|Rubach|1994|p=137}}
• {{IPA|/t͡s, d͡z, s, z/}} can be assimilated to {{IPA|/t͡ʂ, d͡ʐ, ʂ, ʐ/}} before {{IPA|/t͡ʂ, d͡ʐ, ʂ, ʐ/}} and to {{IPA|/t͡ɕ, d͡ʑ, ɕ, ʑ/}} before {{IPA|/t͡ɕ, d͡ʑ, ɕ, ʑ/}}.{{sfnp|Sawicka|1995|p=151}}{{sfnp|Rubach|1994|p=137}}
• {{IPA|/t͡ʂ, d͡ʐ, ʂ, ʐ/}} are variously described as apical postalveolar {{IPA|[t̺͡ʃ̺, d̺͡ʒ̺, ʃ̺, ʒ̺]}}{{sfnp|Rybka|2015|p=70,101}}{{cite book|title=A Practical Introduction to Phonetics|publisher=Oxford University Press|edition=2nd|year=2001|page=87|author=J. C. Catford}} or as (laminal) flat postalveolar.Ladefoged and Maddieson after {{cite book|url=http://www.linguistics.ucla.edu/people/keating/coronals.pdf|title=The Special Status of Coronals|publisher=Academic Press|year=1991|page=35|chapter=Coronal places of articulation|author=P. A. Keating|editor1=C. Paradis|editor2=J.-F. Prunet}} They are articulated with a flat, retracted tongue body, the tongue tip being raised and the entire blade moved up and back behind the corner of the alveolar ridge. A recent study{{sfnp|Lorenc|2018|pp=164–165}} shows that {{IPA|/ʂ, ʐ/}} and the release of {{IPA|/t͡ʂ, d͡ʐ/}} are predominantly alveolar, while the place of articulation of the stop in {{IPA|/t͡ʂ, d͡ʐ/}} varies between alveolar and postalveolar. This agrees with characterizations of {{IPA|/t͡ʂ, d͡ʐ, ʂ, ʐ/}} as alveolar in older sources.{{sfnp|Wierzchowska|1971|pp=164–165}}{{sfnp|Rocławski|1976|pp=153,155,167}} They may be described as retroflex {{IPA|[{{IPAplink|t͡ʂ}}, {{IPAplink|d͡ʐ}}, {{IPAplink|ʂ}}, {{IPAplink|ʐ}}]}}{{sfnp|Rybka|2015|p=101}}{{sfn|Hamann|2004|p=56|ps=, "Summing up the articulatory criteria for retroflex fricatives, they are all articulated behind the alveolar ridge, show a sub-lingual cavity, are articulated with the tongue tip (though this is not always discernible in the x-ray tracings), and with a retracted and flat tongue body."}} to indicate that they are not palatalized laminal postalveolar {{IPA|[{{IPAplink|tʃ|t̻͡ʃ̻}}, {{IPAplink|dʒ̻|d̻͡ʒ̻}}, {{IPAplink|ʃ|ʃ̻}}, {{IPAplink|ʒ|ʒ̻}}]}}. Strictly speaking, this is at odds with the narrower definition of retroflex consonants as subapical, in which the tongue curls back and its underside becomes the active articulator. Occasionally, {{IPA|[t͡ᶘ, d͡ᶚ, ᶘ, ᶚ]}} were used in a similar vein.{{sfnp|Laver|1996|p=560}}
• {{IPA|/t͡ʂ, d͡ʐ, ʂ, ʐ/}} become palatalized laminal postalveolar {{IPA|[{{IPAplink|tʃ|t̻͡ʃ̻}}, {{IPAplink|dʒ̻|d̻͡ʒ̻}}, {{IPAplink|ʃ|ʃ̻}}, {{IPAplink|ʒ|ʒ̻}}]}}{{sfnp|Rybka|2015|p=105}} before {{IPA|/i, j/}} in recent loanwords.{{sfn|Hamann|2004|p=64}}
• {{IPA|/ɲ, t͡ɕ, d͡ʑ, ɕ, ʑ/}} are alveolo-palatal {{IPA|[{{IPAplink|ɲ̟}}, {{IPAplink|t͡ɕ}}, {{IPAplink|d͡ʑ}}, {{IPAplink|ɕ}}, {{IPAplink|ʑ}}]}}. They are articulated with the blade of the tongue behind the alveolar ridge and the body of the tongue raised toward the palate. Before fricatives, {{IPA|/ɲ/}} is usually realized as a nasalized palatal approximant {{IPAblink|j̃}},{{sfnp|Gussmann|2007|pp=2–3}}{{sfnp|Sawicka|1995|p=135}} for example, {{lang|pl|państwo}} ('state/country') {{IPA|[paj̃stfo]}}, {{lang|pl|Gdańsk}} {{IPA|[ɡdaj̃sk]}}.
• {{IPA|/ŋ, k, ɡ/}} are velar {{IPA|[{{IPAplink|ŋ}}, {{IPAplink|k}}, {{IPAplink|ɡ}}]}}. Before fricatives and word-finally, {{IPA|/ŋ/}} is realized as nasalized velar approximant {{IPAblink|w̃}}. According to {{Harvcoltxt|Sawicka|1995|pp=127–128, 136}}, this allophone is non-labialized {{IPAblink|ɰ̃}}.
• {{IPA|/x/}} is primarily velar {{IPAblink|x}}; it has the strongest friction before consonants {{IPAblink|x̝}}, weaker friction before vowels {{IPAblink|x̞}} and weakest friction intervocalically, where it may be realized as glottal {{IPAblink|h}} (this variant "may appear to be voiced").{{sfnp|Rocławski|1976|p=158}} {{IPA|/x/}} has a voiced allophone {{IPAblink|ɣ}}, which occurs whenever {{IPA|/x/}} is followed by a voiced obstruent (even across a word boundary), in accordance with the rules given under § Voicing and devoicing below. For example, {{lang|pl|klechda}} 'legend, myth' is {{IPA|[ˈklɛɣda]}}, {{lang|pl|dach}} ('roof') is {{IPA|[ˈdax]}}, but {{lang|pl|dach domu}} ('roof of the house') is {{IPA|[daɣ ˈdɔmu]}}.
• {{IPA|/k, ɡ, x/}} before {{IPA|/i, j/}} are postpalatal {{IPA|[{{IPAplink|c̠}}, {{IPAplink|ɟ̠}}, {{IPAplink|ç̠}}]}}.{{sfnp|Wierzchowska|1971|pp=195}} If {{IPA|/kʲ, ɡʲ, xʲ/}} are acknowledged as phonemes they are {{IPA|[{{IPAplink|c̠}}, {{IPAplink|ɟ̠}} {{IPAplink|ç̠}}]}} as well, but their distribution is limited to contexts before {{IPA|/i, ɛ, j/}}.{{sfnp|Sawicka|1995|p=146}} A postpalatal allophone {{IPAblink|ɲ̠}} of {{IPA|/ŋ/}} appears only in front of {{IPA|[{{IPAplink|c̠}}, {{IPAplink|ɟ̠}}]}}.
• {{IPA|/l/}} is apical alveolar {{IPAblink|l̺}} and becomes denti-alveolar {{IPAblink|l̪}} before a following denti-alveolar consonant {{IPA|/n, t, d, t͡s, d͡z, s, z/}}. A palatalized laminal {{IPAblink|l̻ʲ}} or alveopalatal {{IPAblink|ʎ̟}} is used before {{IPA|/i, j/}}.{{sfnp|Sawicka|1995|p=130}}
• {{IPA|/r/}} is apical alveolar. It has been traditionally classified as a trill {{IPAblink|r̺}}, with a tap {{IPAblink|ɾ̺}} supposedly only occurring as an allophone or in fast speech.{{sfnp|Rocławski|1976|p=132}} However, more recent studies show that {{IPA|/r/}} is predominantly realized as a tap {{IPAblink|ɾ̺}}, sometimes as an approximant or a fricative, but almost never as a trill.{{Cite journal|last=Szpyra-Kozłowska|first=Jolanta|date=2018|title=The rhotic in fake and authentic Polish-accented English|url=http://cejsh.icm.edu.pl/cejsh/element/bwmeta1.element.ojs-doi-10_17951_lsmll_2018_42_1_81|journal=Lublin Studies in Modern Languages and Literature|language=EN|volume=42|issue=1|pages=81|doi=10.17951/lsmll.2018.42.1.81|issn=2450-4580|doi-access=free}}{{Cite web|url=https://www.researchgate.net/publication/270267157|title=On the phonetic instability of the Polish rhotic /r/ {{!}} Request PDF|website=ResearchGate|language=en|access-date=2019-09-09}} One study found that in an intervocalic context a trilled {{IPAblink|r}} occurs in less than 3% of cases, while a tapped {{IPAblink|ɾ}} occurred in approximately 95% of cases. Another study by the same researcher showed that in a postconsonantal position, {{IPA|/r/}} is realized as a tapped {{IPAblink|ɾ}} in 80–90% of cases, while trilled {{IPAblink|r}} occurs in just 1.5% of articulations.{{Cite web|url=https://www.researchgate.net/publication/304824733|title=Further analysis of the articulation of /r/ in Polish – The postconsonantal position|website=ResearchGate|language=en|access-date=2019-09-09}} A palatalized laminal tap {{IPAblink|ɾ̻ʲ}} is used before {{IPA|/i, j/}} in recent loanwords.{{sfnp|Sawicka|1995|p=130}}
• {{IPA|/j/}} is a palatal approximant {{IPAblink|j}}. According to {{Harvcoltxt|Rocławski|1976|p=123}}, {{IPA|/j/}} is reduced and very short {{IPAblink|i̯}} after consonants before vowels, for example {{lang|pl|miasto}} ('city') {{IPA|[ˈmʲi̯astɔ]}}, {{lang|pl|piasek}} ('sand') {{IPA|[ˈpʲi̯asɛk]}}.
• {{IPA|/w/}} is a velar approximant {{IPAblink|w}}. According to {{Harvcoltxt|Wierzchowska|1976|p=123}}, {{IPA|/w/}} is most commonly non-labialized {{IPAblink|w̜}}; a labialization being typical only before {{IPA|/u/}}. A palatalized allophone {{IPAblink|ɥ|w̟/ɥ̠}}{{sfnp|Rybka|2015|p=43}} before {{IPA|/i/}} is given by {{Harvcoltxt|Sawicka|1995|p=128}}.
• The approximants {{IPA|/j, w/}} may be regarded as non-syllabic vowels when they are not followed by a vowel. For example, {{lang|pl|raj}} ('paradise') {{IPA|[ɾai̯]}}, {{lang|pl|dał}} ('he gave') {{IPA|[dau̯]}}, {{lang|pl|autor}} ('author') {{IPA|[ˈau̯tɔɾ]}}.
• {{IPA|/m, n, ŋ, ɲ, l, r, w/}} are regularly devoiced {{IPA|[{{IPAplink|m̥}}, {{IPAplink|n̥}}, {{IPAplink|ŋ̊}}, {{IPAplink|ɲ̊}}, {{IPAplink|l̥}}, {{IPAplink|ɾ̥}}, {{IPAplink|w̥}}]}} after a voiceless obstruent and optionally after a voiced obstruent which was devoiced.{{sfnp|Sawicka|1995|p=155}} For example, {{lang|pl|wiatr}} ('wind') is pronounced {{IPA|[vjatɾ̥]}}, while {{lang|pl|kadr}} ('a frame") can be pronounced {{IPA|[katɾ̥]}} or {{IPA|[kadɾ]}}. (See § Voicing and devoicing below.)

Polish, like other Slavic languages, permits complex consonant clusters, which often arose from the disappearance of yers (see § Historical development above). Polish can have word-initial and word-medial clusters of up to four consonants, whereas word-final clusters can have up to five consonants.{{cite web|title=Polish|url=http://www.phonetics.ucla.edu/appendix/languages/polish/polish.html|website=UCLA Phonetics Lab data|publisher=UCLA Phonetics Laboratory, University of California, Los Angeles|access-date=26 April 2018|url-status=live|archive-url=https://web.archive.org/web/20170920090539/http://phonetics.ucla.edu/appendix/languages/polish/polish.html|archive-date=20 September 2017}} Examples of such clusters can be found in words such as {{lang|pl|bezwzględny}} {{IPA|/bɛzˈvzɡlɛndnɨ/}} ('unconditional' or 'heartless', 'ruthless'), {{lang|pl|źdźbło}} {{IPA|/ˈʑd͡ʑbwɔ/}} ('blade of grass'), {{Audio|Pl-wstrząs.ogg|{{lang|pl|wstrząs}}|help=no}} {{IPA|/ˈfstʂɔŋs/}} ('shock'), and {{lang|pl|krnąbrność}} {{IPA|/ˈkrnɔmbrnɔɕt͡ɕ/}} ('disobedience'). A popular Polish tongue-twister (from a verse by Jan Brzechwa) is {{Audio|Polish Tongue twister - Chrząszcz - 2.ogg|{{lang|pl|W Szczebrzeszynie chrząszcz brzmi w trzcinie}}|help=no}} {{IPA|/fʂt͡ʂɛbʐɛˈʂɨɲɛ xʂɔŋʂt͡ʂ bʐmi ˈftʂt͡ɕiɲɛ/}} ('In Szczebrzeszyn a beetle buzzes in the reeds').

For the restrictions on combinations of voiced and voiceless consonants in clusters, see § Voicing and devoicing below. Unlike languages such as Czech, Polish does not have syllabic consonants: the nucleus of a syllable is always a vowel.

The consonant {{IPA|/j/}} is restricted to positions adjacent to a vowel. It also cannot precede i or y. (For other restrictions on consonants appearing before i or y, see § Distribution above.)

Polish obstruents (stops, affricates and fricatives) are subject to voicing and devoicing in certain positions. This leads to neutralization of voiced/voiceless pairs in those positions (or equivalently, restrictions on the distribution of voiced and voiceless consonants). The phenomenon applies in word-final position and in consonant clusters.

In Polish consonant clusters, including across a word boundary, the obstruents are all voiced or all voiceless. To determine (based on the spelling of the words) whether a given cluster has voiced or voiceless obstruents, the last obstruent in the cluster, excluding w or rz (but including ż), should be examined to see if it appears to be voiced or voiceless. The consonants n, m, ń, r, j, l, ł do not represent obstruents and so do not affect the voicing of other consonants; they are also usually not subject to devoicing except when surrounded by unvoiced consonants.{{sfnp|Urbańczyk|1992|p=369}} Some examples follow (click the words to hear them spoken):

• {{Audio|Pl-łódka.ogg|łódka|help=no}} {{IPA|[ˈwutka]}} ('boat'), {{IPA|/d/}} → {{IPA|[t]}} before the voiceless k
• {{Audio|Pl-kawka-2.ogg|kawka|help=no}} {{IPA|[ˈkafka]}} ('jackdaw'), {{IPA|/v/}} → {{IPA|[f]}} before the voiceless k
• {{Audio|Pl-także.ogg|także|help=no}} {{IPA|[ˈtaɡʐɛ]}} ('also'), {{IPA|/k/}} → {{IPA|[ɡ]}} before the voiced ż
• {{Audio|Pl-jakby.ogg|jakby|help=no}} {{IPA|[ˈjaɡbɨ]}} ('as if'), {{IPA|/k/}} → {{IPA|[ɡ]}} before the voiced b
• {{Audio|Pl-krzak-2.ogg|krzak|help=no}} {{IPA|[kʂak]}} ('bush'), {{IPA|/ʐ/}} → {{IPA|[ʂ]}}; rz does not determine the voicing of the cluster
• {{Audio|Pl-odtworzyć.ogg|odtworzyć|help=no}} {{IPA|[ɔtˈtfɔʐɨt͡ɕ]}} ('to replay'), {{IPA|/d/}} → {{IPA|[t]}} & {{IPA|/v/}} → {{IPA|[f]}}; w does not determine the voicing of the cluster
• {{lang|pl|dach domu}} {{IPA|[daɣ dɔmu]}} ('roof of the house'), {{IPA|/x/}} → {{IPA|[ɣ]}}; the rule still applies across a word boundary

In some dialects of Wielkopolska and the eastern borderlands, {{IPA|/v/}} remains voiced after voiceless consonants.

The above rule does not apply to sonorants: a consonant cluster may contain voiced sonorants and voiceless obstruents, as in {{Audio|Pl-król-2.ogg|król|help=no}} {{IPA|[krul]}}, {{Audio|Pl-wart.ogg|wart|help=no}} {{IPA|[vart]}}, {{lang|pl|słoń}} {{IPA|[ˈswɔɲ]}}, {{lang|pl|tnąc}} {{IPA|[ˈtnɔnt͡s]}}.

Utterance-finally, obstruents are pronounced voiceless. For example, the {{IPA|/ɡ/}} in {{lang|pl|bóg}} ('god') is pronounced {{IPA|[k]}}, and the {{IPA|/zd/}} in {{lang|pl|zajazd}} ('inn') represents {{IPA|[st]}}. If followed by a word beginning with an obstruent then the above cluster rules apply across morpheme boundaries. When the second word begins with a sonorant the voicing of any preceding word-final obstruent varies regionally. In western and southern Poland, final obstruents are voiced (voicing pronunciation) if the following word starts with a sonorant (here, for example, the {{IPA|/t/}} in {{lang|pl|brat ojca}} 'father's brother' would be pronounced as {{IPA|[d]}}). On the other hand, they are voiceless (devoicing pronunciation) in eastern and northern Poland ({{IPA|/t/}} is pronounced {{IPA|[t]}}). This rule does not apply to prepositional clitics {{lang|pl|w, z, bez, przez, nad, pod, od, przed}} which are always voiced before sonorants.{{sfnp|Ostaszewska|Tambor|2000|p=89}}{{sfnp|Wierzbicka|1971|p=207}}

Multiple palatalizations and some depalatalizations that took place in the history of Proto-Slavic and Polish have created quite a complex system of what are often called "soft" and "hard" consonants. These terms are useful in describing some inflection patterns and other morphological processes, but exact definitions of "soft" and "hard" may differ somewhat.

"Soft" generally refers to the palatal nature of a consonant. The alveolo-palatal sounds {{vr|ń, ś, ź, ć, dź}} are considered soft, as normally is the palatal {{vr|j}}. The {{vr|l}} sound is also normally classed as a soft consonant: like the preceding sounds, it cannot be followed by {{vr|y}} but takes {{vr|i}} instead. The palatalized velars {{IPA|/kʲ/}}, {{IPA|/ɡʲ/}} and {{IPA|/xʲ/}} might also be regarded as soft on this basis.

Consonants not classified as soft are dubbed "hard". However, a subset of hard consonants, {{vr|c, dz, sz, ż/rz, cz, dż}}, often derive from historical palatalizations (for example, {{vr|rz}} usually represents a historical palatalized {{vr|r}}) and behaves like the soft consonants in some respects (for example, they normally take {{vr|e}} in the nominative plural). These sounds may be called "hardened" or "historically soft" consonants.

The historical palatalized forms of some consonants have developed in Polish into noticeably different sounds: historical palatalized t, d, r have become the sounds now represented by {{vr|ć, dź, rz}} respectively. Similarly palatalized {{vr|s, z, n}} became the sounds {{vr|ś, ź, ń}}. The palatalization of labials has resulted (according to the main phonological analysis given in the sections above) in the addition of {{IPAl-pl|j}}, as in the example {{lang|pl|pies}} just given. These developments are reflected in some regular morphological changes in Polish grammar, such as in noun declension.

In some phonological descriptions of Polish,{{sfnp|Stieber|1966}} however, consonants, including especially the labials m, p, b, f, w, are regarded as occurring in "hard" and "soft" pairs. In this approach, for example, the word {{lang|pl|pies}} ('dog') is analyzed not as {{IPA|/pjɛs/}} but as {{IPA|/pʲɛs/}}, with a soft {{IPA|/pʲ/}}. These consonants are then also analyzed as soft when they precede the vowel {{IPA|/i/}} (as in {{lang|pl|pić}} {{IPA|/pʲit͡ɕ/}} 'to drink'). Unlike their equivalents in Russian, these consonants cannot retain their softness in the syllable coda (when not followed by a vowel). For example, the word for "carp" has the inflected forms {{lang|pl|karpia}}, {{lang|pl|karpie}} etc., with soft {{IPA|/pʲ/}} (or {{IPA|/pj/}}, depending on the analysis), but the nominative singular is {{lang|pl|karp}}, with a hard {{IPA|/p/}}.

Similar considerations lead to two competing analyses of palatalized velars. In {{Harvcoltxt|Sawicka|1995|pp=146–47}}, all three palatalized velars are given phonological status on the grounds of their distribution and minimal contrasts between {{IPA|[c̱e]}}, {{IPA|[ɟ̱e]}}, {{IPA|[ç̱e]}} and {{IPA|[c̱je]}}, {{IPA|[ɟ̱je]}}, {{IPA|[ç̱je]}} e.g. {{lang|pl|giełda}} {{IPA|/ˈɡʲɛwda/}} {{IPA|[ˈɟ̱ewda]}} ('stock market'), {{lang|pl|magiel}} {{IPA|/maɡʲɛl/}} {{IPA|[maɟ̱el]}} ('laundry press ') but {{lang|pl|giętki}} {{IPA|/ˈɡʲjɛntkʲi/}} {{IPA|[ˈɟ̱jentc̱i]}} ('flexible'), {{lang|pl|higiena}} {{IPA|/xʲiɡʲjɛna/}} {{IPA|[ç̱iɟ̱jena]}} ('hygiene'). Phonemes {{IPA|/kʲ/}}, {{IPA|/ɡʲ/}} and {{IPA|/xʲ/}} do not occur before {{IPA|/a, ɔ, u/}} where they are separated by a distinct {{IPA|[j]}} e.g. {{lang|pl|kiosk}} {{IPA|/kʲjɔsk/}} {{IPA|[c̱jɵsk]}} ('kiosk'), {{lang|pl|filologia}} {{IPA|/filɔˈlɔɡʲja/}} {{IPA|[filɔˈlɔɟ̱ja]}} ('philology'), {{lang|pl|Hiob}} {{IPA|/xʲjɔp/}} {{IPA|[ç̱jɵp]}} ('Job'). A system with {{IPA|/kʲ/}} and {{IPA|/ɡʲ/}} but without {{IPA|/xʲ/}} is given by {{Harvcoltxt|Rocławski|1976|p=86}}, {{Harvcoltxt|Wiśniewski|2007|p=187}}, {{Harvcoltxt|Jassem|2003|p=103}} and {{Harvcoltxt|Ostaszewska|Tambor|2000|p=135}}. This analysis is based on an assumption that there is actually no {{IPA|[ç̱e]}} but only {{IPA|[ç̱je]}} as chie, hie occur only in loanwords.{{sfnp|Sawicka|1995|p=146}} However, a decomposed palatalization of kie, gie i.e. {{IPA|[c̱je]}}, {{IPA|[ɟ̱je]}} in all contexts is a predominant pronunciation in contemporary Polish.According to {{Harvcoltxt|Osowicka-Kondratowicz|Serowik|2004|p=119}} synchronic realizations amount to 17% in case of kie and 20% of gie, remaining realizations are with weak or distinct {{IPA|[j]}}. Based on that, a system without palatalized velars is given by {{Harvcoltxt|Strutyński|2002|p=73}}, {{Harvcoltxt|Rocławski|2010|p=199}} and {{Harvcoltxt|Osowicka-Kondratowicz|2012|p=223}}. In such a system palatalized velars are analyzed as {{IPA|/k/}}, {{IPA|/ɡ/}} and {{IPA|/x/}} before {{IPA|/i/}} and {{IPA|/kj/}}, {{IPA|/ɡj/}} and {{IPA|/xj/}} before other vowels.{{sfnp|Grzybowski|1986|p=169}} This is the main analysis presented above.

The consonants t, d, r (and some others) can also be regarded as having hard and soft forms according to the above approach, although the soft forms occur only in loanwords such as {{lang|pl|tir}} {{IPA|/tʲir/}} ('large lorry'; see TIR).{{citation needed|date=March 2021}} If the distinction is made for all relevant consonants, then y and i can be regarded as allophones of a single phoneme, with y following hard consonants and i following soft ones (and in initial position).

In more contemporary Polish, a phonetic glottal stop may appear as the onset of a vowel-initial word (e.g. {{lang|pl|Ala}} {{IPA|[ʔala]}}).Magdalena Osowicka-Kondratowicz, "Zwarcie krtaniowe – rodzaj fonacji czy artykulacji?", Rocznik Slawistyczny, t. LXVII, 2018 {{doi|10.24425/rslaw.2018.124590}}, p. 41 It may also appear following word-final vowels to connote particular affects; for example, {{lang|pl|nie}} ('no') is normally pronounced {{IPA|[ɲɛ]}}, but may instead be pronounced {{IPA|[ɲɛʔ]}} or in a prolonged interrupted {{IPA|[ɲɛʔɛ]}}. This intervocalic glottal stop may also break up a vowel hiatus, even when one appears morpheme-internally, as in {{lang|pl|poeta}} ('poet') {{IPA|[pɔʔɛta]}} or {{lang|pl|Ukraina}} ('Ukraine') {{IPA|[ʔukraʔina]}}. A relatively new phenomenon in Polish is the expansion of the usage of glottal stops. In the past, initial vowels were pronounced with an initial voiceless glottal fricative (so that {{lang|pl|Ala}} was pronounced {{IPA|[hala]}}), pre-iotation (so that {{lang|pl|igła}} ('needle') was pronounced {{IPA|[jiɡwa]}}), or pre-labialization (so that {{lang|pl|oko}} 'eye' was pronounced {{IPA|[u̯ɔkɔ]}}).Osowicka-Kondratowicz, 2018 p. 40

In some Polish dialects (found in the eastern borderlands and in Upper Silesia) there is an additional voiced velar fricative {{IPAslink|ɣ}}, represented by the letter {{angbr|h}}. It may be actually a voiced glottal fricative [{{IPA link|ɦ}}] for some speakers, especially word-finally.{{sfnp|Sawicka|1995|p=142}} In most varieties of Polish, both {{angbr|h}} and {{angbr|ch}} represent {{IPAslink|x}}.

Some eastern dialects also preserve the velarized dental lateral approximant, {{IPA|[ɫ̪]}}, which corresponds to {{IPA|[w]}} in most varieties of Polish. Those dialects also can palatalize {{IPAblink|l}} to {{IPAblink|lʲ}} in every position, but standard Polish does so only allophonically before {{IPAslink|i}} and {{IPAslink|j}}.{{sfnp|Rocławski|1976|p=130}} {{IPAblink|ɫ̪}} and {{IPAblink|lʲ}} are also common realizations in native speakers of Polish from Lithuania, Belarus and Ukraine.

{{Harvcoltxt|Rocławski|1976}} notes that students of Polish philology were hostile towards the lateral variant of {{angbr|ł}}, saying that it sounded "unnatural" and "awful". Some of the students also said that they perceived the lateral {{angbr|ł}} as a variant of {{angbr|l}}, which, he further notes, along with the necessity of deciding from context whether the sound meant was {{IPA|/w/}} or {{IPA|/l/}}, made people hostile towards the sound.{{sfnp|Rocławski|1976|pp=130–131}} On the other hand, some Poles view the lateral variant with nostalgia, associating it with the elegant culture of interwar Poland.{{cite web|url=http://www.radio.bialystok.pl/reportaz/index/id/25909|title=Słynne gładkie ł|publisher=Radio Białystok|access-date=27 June 2015|url-status=live|archive-url=https://web.archive.org/web/20150630205328/http://www.radio.bialystok.pl/reportaz/index/id/25909|archive-date=30 June 2015}}

In the Masurian dialects and some neighboring dialects, {{lang|pl|mazurzenie}} occurs: postalveolar {{IPA|/ʂ, ʐ, t͡ʂ, d͡ʐ/}} merge with the corresponding dentals {{IPA|/s, z, t͡s, d͡z/}} unless {{IPA|/ʐ/}} is spelled {{angbr|rz}} (a few centuries ago, it represented a fricative trill {{IPA|/r̝/}} similar to Czech ⟨ř⟩, distinct from {{IPA|/ʐ/}}; only the latter sound occurs in modern Polish, with the exception of a small number of dialects).

The predominant stress pattern in Polish is penultimate: the second-last syllable is stressed. Alternating preceding syllables carry secondary stress: in a four-syllable word, if the primary stress is on the third syllable, there will be secondary stress on the first.{{Harvcoltxt|Gussmann|2007|p=8}}, deferring to {{Harvcoltxt|Rubach|Booij|1985}} for further discussion.

There must be a syllable for each written vowel except when the letter i precedes another vowel (in that case the i represents either {{IPA|/j/}}, or palatalization of the preceding consonant, or both, depending on analysis; see Polish orthography and the above). Also, the letters u and i sometimes represent only semivowels after another vowel, as in {{lang|pl|autor}} {{IPA|/ˈawtɔr/}} ('author'); these semivowels mostly occur in loanwords (so not in native {{lang|pl|nauka}} {{IPA|/naˈu.ka/}} 'science, the act of learning', for example, nor in nativized {{lang|pl|Mateusz}} {{IPA|/maˈte.uʂ/}} 'Matthew').

Some loanwords, particularly from classical languages, have the stress on the antepenultimate (third-last) syllable. For example, {{lang|pl|fizyka}} ({{IPA|/ˈfizɨka/}}) ('physics') is stressed on the first syllable. That may lead to a rare phenomenon of minimal pairs differing only in stress placement: {{lang|pl|muzyka}} {{IPA|/ˈmuzɨka/}} 'music' vs. {{lang|pl|muzyka}} {{IPA|/muˈzɨka/}} – genitive singular of {{lang|pl|muzyk}} 'musician'. When further syllables are added at the end of such words through suffixation, the stress normally becomes regular: {{lang|pl|uniwersytet}} ({{IPA|/uɲiˈvɛrsɨtɛt/}}, 'university') has irregular stress on the third (or antepenultimate) syllable, but the genitive {{lang|pl|uniwersytetu}} ({{IPA|/uɲivɛrsɨˈtɛtu/}}) and derived adjective {{lang|pl|uniwersytecki}} ({{IPA|/uɲivɛrsɨˈtɛt͡ski/}}) have regular stress on the penultimate syllables. Over time, loanwords tend to become nativized to have a penultimate stress.{{sfnp|Gussmann|2007|p=9}}

Another class of exceptions to the usual stress pattern is verbs with the conditional endings {{lang|pl|-by, -bym, -byśmy}} etc. Those endings are not counted in determining the position of the stress: {{lang|pl|zrobiłbym}} ('I would do') is stressed on the first syllable and {{lang|pl|zrobilibyśmy}} ('we would do') on the second. According to prescriptive grammars, the same applies to the first and second person plural past tense endings {{lang|pl|-śmy, -ście}} although this rule is often ignored in colloquial speech (so {{lang|pl|zrobiliśmy}} 'we did' is said to be correctly stressed on the second syllable, although in practice it is commonly stressed on the third as {{lang|pl|zrobiliśmy}}).{{sfnp|Oliver|Grice|2003|p=1}} The irregular stress patterns in the presence of these verb endings are explained by the fact that the endings are detachable clitics rather than true verbal inflections: for example, instead of {{lang|pl|kogo zobaczyliście?}} ('whom did you see?') it is possible to say {{lang|pl|kogoście zobaczyli?}} – here {{lang|pl|kogo}} retains its usual stress (first syllable) in spite of the attachment of the clitic. Reanalysis of the endings as inflections when attached to verbs causes the different colloquial stress patterns.

Some common word combinations are stressed as if they were a single word. That applies in particular to many combinations of preposition plus a personal pronoun, such as {{lang|pl|do niej}} ('to her'), {{lang|pl|na nas}} ('on us'), {{lang|pl|przeze mnie}} ('because of me'), all stressed on the bolded syllable of the preposition.

• Evolution of the Polish language
• Polish alphabet
• Polish orthography
• Help:IPA/Polish (a guide to pronunciation of Polish words as represented in Wikipedia articles)

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