shell

• Shell (structure), a thin structure
• Concrete shell, a thin shell of concrete, usually with no interior columns or exterior buttresses

• Seashell, a hard outer layer of a marine animal, found on beaches
• Eggshell
• Nutshell
• Exoskeleton, an external covering of some animals
• Mollusc shell
• Bivalve shell
• Gastropod shell
• Shell, of a brachiopod
• Turtle shell
• Armadillo shell

• Electron shell or a principal energy level of electrons outside an atom's nucleus
• Nuclear shell model, a principal energy level of nucleons within an atom's nucleus
• On shell and off shell, quantum field theory concepts depending on whether classical equations of motion are obeyed

• Spherical shell

• Shell plc formerly Royal Dutch Shell plc, a British multinational oil and gas company
• Shell Oil Company or Shell USA
• Shell Australia
• Shell Canada
• Shell Nigeria
• Shell corporation, a type of company that serves as a vehicle for business transactions

• Shell (computing), a type of user interface
• Command-line interface, sometimes referred to as command shell
• List of command-line interpreters, programs occasionally referred to as shells
• Web shell, interface that enables a web server to be remotely accessed
• Read–eval–print loop, also known as a language shell
• Shell account, a user account on a remote server
• Secure Shell, cryptographic network protocol
• Shellsort or Shell sort, a sorting algorithm by Donald Shell
• Shell, an empty expert system

• Shell (2012 film), an independent drama film
• Shell (2024 film), an American thriller film
• Shell (theater), a curved surface for reflecting sound
• The Shells, a musical group
• "Shell (Of a Man)", a song by Saya Gray from SAYA, 2025
• "Shells" (Angel), a TV episode
• "The Shell" (The Amazing World of Gumball), a TV episode
• Shell, a receptacle used in the Shell game
• "Shell", a song by Arrested Development from Zingalamaduni

• Shell, Ecuador
• Shell, Worcestershire, England
• Shell, Wyoming, United States
• Shell Lake (disambiguation), several places

• Shell (projectile), an explosive device fired from artillery
• Shotgun shell, a type of shotgun ammunition

• Art Shell (born 1946), American football player and coach
• Brandon Shell (born 1992), American football player
• Donald Shell (1924–2015), American computer scientist
• Donnie Shell (born 1952), American football player
• George Shell (disambiguation)
• Karl Shell (born 1938), American economist
• Rita Shell (1863–1950), British magazine editor

• Racing shell, a watercraft
• Shell (machinery), each half of a two-piece plain bearing

• Coverage shell, the number of defenders guarding the deep portion of the field in American football
• Conchiglie, a type of pasta

• Shell suit, a descendant of the tracksuit
• Shel
• Shels (disambiguation)
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