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Confirm (v. t.) To make firm or firmer; to add strength to; to establish; as, health is confirmed by exercise.
Confirm (v. t.) To strengthen in judgment or purpose.
Confirm (v. t.) To give new assurance of the truth of; to render certain; to verify; to corroborate; as, to confirm a rumor.
Confirm (v. t.) To render valid by formal assent; to complete by a necessary sanction; to ratify; as, to confirm the appoinment of an official; the Senate confirms a treaty.
Confirm (v. t.) To administer the rite of confirmation to. See Confirmation, 3.