Synonyms of affirmation

1 Syllable
claims, claim, oath
2 Syllables
assent, okay
3 Syllables
assenting, avouchment, averment, promise, statement, demurrer, confession, overment, assertion, quality, qualities, alibi, affiance, avowal, confessions, assertions, assented
4 Syllables
testimonial, predications, evidence, confirmation, confirmations, endorsement, assurance, asservation, demonstrations, validations, accedence, testimonies, attestation, demonstration, allegations, declarations, affidavit, validation, predication, allegation, unbosoming, adjuration, testimony, declaration, pronouncement, superscription, acknowledgment
5 Syllables
testification, corroboration, corroborations, asseveration, certification, ratification, certificate
6 Syllables
countersignature