Sig is a slang term often used as an abbreviation for signature or signer, particularly in the technology world. Other synonyms that can be used for this term can include endorsement, autograph, stamp, seal, name, signet, mark, monogram, initials, badge, emblem, sign, token, insignia, symbol, hallmark, impression, and handwriting. Different words may be more appropriate based on the context, but all of these can be used interchangeably with sig to indicate the identification or approval of a particular individual or organization. These words also denote the unique characteristic of an individual's signature and can add emphasis and legitimacy to the object or document it is affixed to.