Nouns

(n)avowal, avouchment, affirmationa statement asserting the existence or the truth of something
(n)affirmation, assertion, statementthe act of affirming or asserting or stating something
(n)affirmation(religion) a solemn declaration that serves the same purpose as an oath (if an oath is objectionable to the person on religious or ethical grounds)
(n)affirmationa judgment by a higher court that the judgment of a lower court was correct and should stand