Seal Seal or SEAL may refer to: Seal, a large marine mammal: see pinniped. (Origin: Anglo-Saxon seolh) Seal (device), a device used to produce an official stamp as a symbol of authority, or the impression left by a seal in sealing wax. (Origin: Latin sigillum = "small symbol", a diminutive of signum) Seal (mechanical), a device to contain pressure, or exclude contamination from an enclosure. (Derived from the previous in its role to fasten an official document shut.) Seal (musician), a British soul singer, who has released three albums of the same name: Seal (1991 album). Seal (1994 album). Seal (2003 album) and Seal Best of Album. Seal, Kent, a village in Kent, England. (Origin: probably Anglo-Saxon sēale = "copse of sallow-trees"). U.S. Navy SEALs, special forces of the United States Navy. (Origin: acronym from "SEa, Air, Land"). Semantics-directed Environment Adaptation Language, a computer programming language. SEAL (cipher), a cryptographic cipher. HMS Seal (N37), a submarine of the Royal Navy.
