signatory signator • signatural · · · Info · Definitions · Synonyms · Characters · · signatory · · Text Latin · · Script 9 · · Length Definitions · · · (noun) someone who signs and is bound by a document. Synonyms: signer. · · Noun Definition 1 Synonyms · · · signer · · Synonym 1 Characters · · a latin small letter a U+0061 g latin small letter g U+0067 i latin small letter i U+0069 n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074 y latin small letter y U+0079