noun A common substance, chemically consisting mainly of sodium chloride (NaCl), used extensively as a food ingredient, seasoning, condiment, and preservative.
noun One of the compounds formed from the reaction of an acid with a base, where a positive ion replaces a hydrogen of the acid.
noun A salt marsh, a saline marsh at the shore of a sea.
noun A sailor .
noun A sequence of random data added to plain text data (such as passwords or messages) prior to encryption or hashing, in order to make brute force decryption more difficult.
noun A person who seeks employment at a company in order to (once employed by it) help unionize it.