1. 证明的 (契据等的)连署人,证人：attest || 证明 | attestant || 证明的 (契据等的)连署人,证人 | attestation clause || 签证条款

noun

1. someone who affirms or vouches for the correctness or truth or genuineness of something

Synonym: attester

2. (law) a person who attests to the genuineness of a document or signature by adding their own signature

Synonym: witnessattestorattestator