bayonet

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A blade adapted to fit the muzzle end of a rifle and used as a weapon in close combat.
• transitive verb To prod, stab, or kill with this weapon.

from The Century Dictionary.

• To stab with a bayonet; compel or drive by the bayonet.
• noun A short flat dagger.
• noun A dagger or short stabbing instrument of steel for infantry soldiers, made to be attached to the muzzle of a gun.
• noun In machinery, a pin which plays in and out of holes made to receive it, and which thus serves to connect and disconnect parts of the machinery. See bayonet-clutch.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Mil.) A pointed instrument of the dagger kind fitted on the muzzle of a musket or rifle, so as to give the soldier increased means of offense and defense.
• noun (Mach.) A pin which plays in and out of holes made to receive it, and which thus serves to engage or disengage parts of the machinery.
• noun See Clutch.
• noun a form of coupling similar to that by which a bayonet is fixed on the barrel of a musket.
• noun (photography) a coupling mechanism for attaching removable lenses to the body of a camera, using a bayonet socket.
• noun a coupling mechanism for attaching matching cylindrical parts to each other, where each of which has an arced L-shaped slot with the longer side perpendicular to the axis of the cylinder, such that the slots slide inside each other. There is also usually a knoblike projection on the mount so that when the two parts to be connected are fully inserted in proper alignment, they are locked in place. It is designed for rapid coupling and decoupling, requiring the turning of one part through only a small arc, in place of a screw-type arrangement, which requires several full turns.
• transitive verb To stab with a bayonet.
• transitive verb To compel or drive by the bayonet.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun Weapon A pointed instrument of the dagger kind fitted on the muzzle of a musket or rifle, so as to give the soldier increased means of offence and defence. Originally, the bayonet was made with a handle, which required to be fitted into the bore of the musket after the soldier had fired.
• noun A pin which plays in and out of holes made to receive it, and which thus serves to engage or disengage parts of the machinery.
• verb transitive To stab with a bayonet.
• verb transitive To compel or drive by the bayonet.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a knife that can be fixed to the end of a rifle and used as a weapon
• verb stab or kill someone with a bayonet