bullet

A bullet is the metal object that is fired out of a gun when its trigger is pulled. Without bullets, a gun is harmless.

If someone talks about ammunition for a gun, they're talking about bullets. A bullet doesn't usually contain explosives but does its damage by penetrating whatever — or whomever — it hits. The Middle French source of bullet is boulette, "cannonball" or "small ball," from boule, "a ball," with its Latin root bulla, "round thing." To "bite the bullet" means to withstand an unpleasant but necessary situation, from the (possibly fictitious) practice of patients biting bullets during painful operations.

Definitions of bullet
  1. noun
    a projectile that is fired from a gun
    synonyms: slug
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    types:
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    dumdum, dumdum bullet
    a soft-nosed small-arms bullet that expands when it hits a target and causes a gaping wound
    full metal jacket
    a lead bullet that is covered with a jacket of a harder metal (usually copper)
    rifle ball
    a bullet designed to be fired from a rifle; no longer made spherical in shape
    rubber bullet
    a bullet made of hard rubber; designed for use in crowd control
    type of:
    missile, projectile
    a weapon that is forcibly thrown or projected at a targets but is not self-propelled
  2. noun
    (baseball) a pitch thrown with maximum velocity
    synonyms: fastball, heater, hummer, smoke
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    types:
    slider
    a fastball that curves slightly away from the side from which it was thrown
    type of:
    delivery, pitch
    (baseball) the act of throwing a baseball by a pitcher to a batter
  3. noun
    a high-speed passenger train
    synonyms: bullet train
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    type of:
    passenger train
    a train that carries passengers
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