con·vince / kənˈvins/ • v. [tr.] cause (someone) to believe firmly in the truth of something: Robert's expression had obviously convinced her of his innocence. ∎  persuade (someone) to do something: she convinced my father to branch out on his own.DERIVATIVES: con·vinc·er n.con·vin·ci·ble adj.

convince †overcome in argument; †convict; †prove XVI; bring to a belief XVII. — L. convincere convict of error, prove clearly (guilt, etc.), f. CON- (intensive) + vincere overcome.