Definition of "Cannon" :

noun: a shot in billiards in which the cue ball contacts one object ball and then the other

noun: lower part of the leg extending from the hock to the fetlock in hoofed mammals

noun: a large artillery gun that is usually on wheels

noun: heavy automatic gun fired from an airplane

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

noun: heavy gun fired from a tank

verb: fire a cannon

verb: make a cannon