TNC

• Triangular network coding, a packet coding scheme
• Trusted Network Connect, an open architecture for computer network access control

• Trevecca Nazarene College, now called Trevecca Nazarene University, Nashville, Tennessee, U.S.
• Turkmen National Conservatory, a music conservatory in Ashgabat, Turkmenistan

• Tenascin C or TN-C, a protein encoded by the TNC gene
• Thymic nurse cells

• Teatre Nacional de Catalunya, a public theatre in Barcelona, Catalonia, Spain
• Television Nishinippon Corporation, a TV station in Fukuoka, Japan
• Telenovela Channel, a telenovela-based cable channel in the Philippines
• The New Criterion, a monthly literary magazine based in New York City, New York, U.S.
• Theater for the New City, New York City, New York, U.S.

• Terminal node controller, a device used by amateur radio operators
• The Nature Conservancy, an environmental organization headquartered in Arlington, Virginia, U.S.
• TNC connector, a type of coaxial cable connector
• Toronto Neighbourhood Centres
• Transnational corporation, corporations that identify with more than one country
• Transportation network company, a legal term for a ridesharing company in certain jurisdictions
• tnc, ISO 639-3 code for Tanimuca-Retuarã language
• Team and Concepts (TnC), a Hong Kong–based company that produced the online spreadsheet EditGrid
• Tripartite Naval Commission, a 1945 naval commission formed to allocate seized German ships and submarines
• A contractual term, otherwise known as "terms and conditions"

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