present participle con·sent·ing, 3rd person present singular con·sents) 1. give permission: to give formal permission for something to happen As soon as they met Robert, her parents consented to the marriage. 2. agree: to agree to do something She consented to appear as a witness. noun 1. permission for something: acceptance of or agreement to something proposed or desired by another 2. consensus: agreement on an opinion or course of action It was by common consent the best. [13th century. Via Old French < Latin consentire "feel with" < sentire "feel"] -con·sent·er, noun Word Key: Synonyms See agree.