cannon

(noun) a large artillery gun that is usually on wheels.

(noun) heavy gun fired from a tank.

(noun) (Middle Ages) a cylindrical piece of armor plate to protect the arm.

(noun) heavy automatic gun fired from an airplane.

(noun) lower part of the leg extending from the hock to the fetlock in hoofed mammals. Synonyms: shank.

(noun) a shot in billiards in which the cue ball contacts one object ball and then the other. Synonyms: carom.

(verb) make a cannon.

(verb) fire a cannon.