the act or an instance of affirming; state of being affirmed.

the assertion that something exists or is true.

something that is affirmed; a statement or proposition that is declared to be true.

confirmation or ratification of the truth or validity of a prior judgment, decision, etc.

Law . a solemn declaration accepted instead of a statement under oath.

noun

denial , negation , nullification , veto

noun

affidavit , assertion , asseveration , attestation , averment , avouchment , avowal , certification , confirmation , declaration , green light * , oath , okay , pronouncement , ratification , stamp of approval , statement , sworn statement , testimonial , testimony , allegation , claim , approval , sanction