the GNU version of the Collaborative International Dictionary of English
noun.
a person who attests to the genuineness of a document or signature by adding their own signature.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
(law) a person who attests to the genuineness of a document or signature by adding their own signature
noun.
someone who affirms or vouches for the correctness or truth or genuineness of something
Word Usage
"Du coup a midi j'ai enfin decidé de me rendre chez le doc pour faire un certificat attestant de mon incapacité a me rendre en stage! ceci dit j'ai proposé a mes formateurs de rattraper ces deux semaines de stage en mai!"