Signature

signature

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1 a : the act of signing one's name or of making a mark in lieu thereof
b : the name of a person written with his or her own hand to signify that the writing which precedes accords with his or her wishes or intentions
c : any mark (as initials, stamp, or printed name) made on a document and intended to serve as an indication of the party's execution or authentication of the document and intent to be bound by it see also private signature
2 : a distinguishing or identifying mark, feature, or quality
;esp
: a distinctive method of committing a crime that is characteristic of an offender