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signature

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signature
signature S3 /ˈsɪɡnətʃə $ -ər/ noun
 Word Family: noun: sign, signal, signatory, signature, signing, signaller; verb: sign, signal; adverb: signally; adjective: signed ≠ unsigned
 Date: 1500-1600
 Language: Old French
 Origin: Medieval Latin signatura, from Latin signare; sign2
1. [countable] your name written in the way you usually write it, for example at the end of a letter, or on a cheque etc, to show that you have written it:
    Her signature is totally illegible (=cannot be read).
    The school collected 4,000 signatures for the petition.
    The Ukrainians put their signatures to the Lisbon Protocol.
    Someone’s forged my signature (=made an illegal copy of my name to deceive people) on this letter.
    Each child must obtain the signature of his or her parents.
2. [uncountable] formal the act of signing something
    for signature
    We will send you a copy of the agreement for signature.
3. [countable usually singular] something that is closely related to an event, person, or style:
    Smith’s signature singing style
key signature, time signature