Definition of cannon noun from the Oxford Advanced Learner's Dictionary



    BrE BrE//ˈkænən//
    ; NAmE NAmE//ˈkænən//
    (pl. cannon, cannons) Weapons
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  1. 1an old type of large heavy gun, usually on wheels, that fires solid metal or stone balls Three cannon opened fire. a burst of cannon fire see also loose cannon, water cannon See related entries: Weapons
  2. 2an automatic gun that is fired from an aircraft
  3. Word Originlate Middle English: from French canon, from Italian cannone ‘large tube’, from canna ‘cane, reed’, via Latin from Greek kanna, kannē, of Semitic origin.Extra examples Cannons thundered to their right. Riot police used water cannon and tear gas to disperse the crowd. Riot police used water cannon to disperse the crowd. The foot soldiers were just used as cannon fodder. The helicopter directed a burst of cannon fire at the target.