Home › Words › S › signatorsignatorsignator means A signatory: someone who signs something.EtymologyBorrowed from Latin signātor.nounA signatory: someone who signs something.Definitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.signer 78% match — One who signs (in any sense of that verb).; One who signs their name (applies their signature to something). vs signator →undersigner 72% match — One who undersigns. vs signator →consignatory 72% match — One of several joint signatories to a document. vs signator →countersignatory 68% match — One who makes a countersignature. vs signator →signature 66% match — A person's name, written by that person, used as identification or to signify approval of accompanying material, such as a legal contract. vs signator →cosignatory 66% match — Any of several people who sign a document together (especially a treaty) vs signator →countersigner 65% match — One who countersigns a document. vs signator →nonsignatory 65% match — One who is not a signatory. vs signator →