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The acronym SEAL in the United States Navy SEALs stands for Sea, Air, and Land. It is derived from the teams' ability to operate on the seas, in the air, and on land.
The corporate seal, also known as the company seal, is an emblem pressed into important documents, such as deeds, certifications and contracts. Some banks still require the use of a seal to open company accounts. The use of the seal dates back to the middle ages.