attester

Từ điển WordNet v3.1 - WordNet Dictionary

noun

someone who affirms or vouches for the correctness or truth or genuineness of something
• Syn:
attestant
• Derivationally related forms:
attest (for: attestant), attest
• Hypernyms:
witness, witnesser, informant

• Từ đồng nghĩa / Synonyms:
  testify, take the stand, bear witness, certify, manifest, demonstrate, evidence