noun can·non \ˈka-nən\

: a large gun that shoots heavy metal or stone balls and that was once a common military weapon

: a large automatic gun that is shot from an aircraft

plural cannons or cannon

Full Definition of CANNON

plural usually cannon
a :  a large heavy gun usually mounted on a carriage
b :  a heavy-caliber automatic aircraft gun firing explosive shells
or can·on :  the projecting part of a bell by which it is hung :  ear
:  the part of the leg in which the cannon bone is found

Origin of CANNON

Middle English canon, from Anglo-French, from Old Italian cannone, literally, large tube, augmentative of canna reed, tube, from Latin, cane, reed — more at cane
First Known Use: 15th century

Other Weapons and Explosives Terms

automatic, carbine, cudgel, muzzle, rapier

Rhymes with CANNON



: to suddenly and forcefully hit or move into or against someone or something

Full Definition of CANNON

intransitive verb
:  to discharge cannon
transitive verb
:  cannonade

First Known Use of CANNON


Other Military Terms

bivouac, logistics, petard, salient, sally, supernumerary, tactical

Rhymes with CANNON


biographical name Can·non \ˈka-nən\

Definition of CANNON

Joseph Gurney 1836–1926 Uncle Joe Am. polit.
CANNON Defined for Kids


noun can·non \ˈka-nən\
plural cannons or cannon

Definition of CANNON for Kids

:  a large heavy weapon consisting mostly of a metal tube that is mounted on wheels and is used for firing cannonballs
Medical Dictionary


noun can·non \ˈkan-ən\

Medical Definition of CANNON

:  the part of the leg in which the cannon bone is found

Illustration of CANNON

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