definition of
affirm

[1] #1 affirm v. [confirm, corroborate, sustain, substantiate, support] establish or strengthen as with new evidence or facts; "his story confirmed my doubts"; "The evidence supports the defendant". wn

[2] #2 affirm v. [verify, assert, avow, aver, swan, swear] to declare or affirm solemnly and formally as true; "Before God I swear I am innocent". wn

[3] #3 affirm v. say yes to. wn