English Reference
noun · verb

cannon

n. · v.
US /ˈkænən/ UK /kˈænən/ can·non UK spelling cannon's, cannon's, cannoning

  1. 01 B2 Upper Intermediate Military

    n.a large, heavy gun from history that was used to fire heavy metal balls.

    n.a large, heavy piece of artillery, typically mounted on wheels, formerly used in warfare to fire heavy projectiles.

    Simple

    The old castle still has several iron cannons pointing out toward the sea.

    In context

    During the siege, the heavy cannons were positioned on the ridge to breach the fortress walls with sustained fire.

    Pitfall
    The soldiers fired a canon at the wall. The soldiers fired a cannon at the wall.

    Use 'cannon' for the weapon; 'canon' refers to a collection of books or a rule.

  2. 02 C1 Advanced InformalSlang Sport

    n.a very strong arm that can throw a ball a long distance.

    n.a player's arm characterized by great strength and accuracy in throwing a ball.

    Simple

    The new outfielder has a absolute cannon for an arm.

    In context

    Scouts were immediately impressed by the young catcher, noting he possessed a cannon that could easily catch runners stealing second base.

  3. 03 C2 Proficiency British EnglishTechnical Cooking

    n.a piece of meat, usually lamb, that has been rolled into a long shape.

    n.a cut of meat, typically the loin of lamb, that has been boned, rolled, and tied.

    Simple

    The chef prepared a roasted cannon of lamb served with fresh vegetables.

    In context

    For the main course, the restaurant features a pan-seared cannon of venison accompanied by a red wine reduction.

  4. 04 C1 Advanced British English

    v.to hit something or someone very hard while moving, often by accident.

    v.to collide with or strike something or someone with great force, often resulting in a rebound.

    Simple

    The cyclist lost control and cannoned into a parked car.

    In context

    The striker cannoned off the defender and fell to the ground, prompting the referee to blow his whistle for a foul.

    Usage

    Usually followed by the preposition 'into' or 'off'.

Washington armed the trade ship with a few cannons, manned it with fishermen and sent it out to hijack British supply ships to help his army win the siege of Boston.

Smithsonian Magazine· 22 Jun 2026
This entry
Level B2 · Upper Intermediate
Frequency Common
Updated