- a person or thing that knocks.
- a hinged knob, bar, etc., on a door, for use in knocking.
- a persistent and carping critic; faultfinder.
- a female breast.
- canvassing or selling door-to-door.
- an object, usually ornamental and made of metal, attached to a door by a hinge and used for knocking
- a person who finds fault or disparages
- a female breast
- a person or thing that knocks
- promptly; at once
