Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun attestant

2 senses of attestant

Sense 1
witness, attestant, attestor, attestator -- ((law) a person who attests to the genuineness of a document or signature by adding their own signature)
       => signer, signatory -- (someone who signs and is bound by a document)

Sense 2
attester, attestant -- (someone who affirms or vouches for the correctness or truth or genuineness of something)
       => witness, witnesser, informant -- (someone who sees an event and reports what happened)