1. establish or strengthen as with new evidence or facts

Similar word(s): confirm, corroborate, substantiate, support, sustain

Definition categories: cognition

2. to declare or affirm solemnly and formally as true

Similar word(s): assert, aver, avow, swan, swear, verify

Definition categories: communication, declare

3. say yes to

Definition categories: communication

Sentences with affirm as a verb:

- She affirmed that she would go when I asked her.

- They did everything they could to affirm the children's self-confidence.