confirm definition

1. establish or strengthen as with new evidence or facts
• examples: his story confirmed my doubts
• examples: The evidence supports the defendant
2. strengthen or make more firm
• examples: The witnesses confirmed the victim's account
3. make more firm
• examples: Confirm thy soul in self-control!
4. support a person for a position
• examples: The Senate confirmed the President's candidate for Secretary of Defense
5. administer the rite of confirmation to
• examples: the children were confirmed in their mother's faith