1. A sign, stamp, or mark impressed; sign-manual; the name of a person written or subscribed by himself; a letter or figure by which the sheets are distinguished and their order designated, as a direction to the binder, or the sheet so distinguished.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• segnature,
• singnature,
• siginature,
• signapore,
• signaure,
• signatre,
• signitures,
• sgnature,
• signitaure,
• sinature,
• signarute,
• signator,
• sigiture,
• signatige,
• sigunature,
• signtature,
• signatuare,
• signiture,
• sginature,
• signatiure

• signet ring,
• signatory,
• signet.

The adverb form of "signature" is "significantly".

The adjective form of the word "signature" is "signatured".

The plural of the "signature" can be the "signatures".

The singular of the "signature" can be the "signature".