Beck(noun) see Beak. Beck(noun) a small brook. Beck(noun) a vat. See Back. Beck(verb) to nod, or make a sign with the head or hand. Beck(verb) to notify or call by a nod, or a motion of the head or hand; to intimate a command to. Beck(noun) a significant nod, or motion of the head or hand, esp. as a call or command.