<p><strong>noun</strong></p><ul><li>a daggerlike steel weapon that is attached to or at the muzzle of a gun and used for stabbing or slashing in hand-to-hand combat.</li><li>a pin projecting from the side of an object, as the base of a flashbulb or camera lens, for securing the object in a bayonet socket.</li></ul><p><strong>verb</strong></p><ul><li>(used with object) to kill or wound with a bayonet.</li></ul>