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signature

sig·na·ture

signature

 
 
pronunciation:
sIg n chr
part of speech: noun
definition 1: a person's written name, used to sign documents, letters, or checks.
You will need a parent's signature to leave school early.
similar words:
autograph, mark
definition 2: a sign used to indicate the key or tempo of a piece of music.
Most waltzes are written in a 3/4 time signature.