baggonet

Noun

bayonet (plural bayonets)

1. A blade mounted to the end of a long gun, originally with a handle inserted into the bore, now usually attached underbarrel.
   • Fig. 3. Its bayonet, to be fixed by sticking the handle into the muzzle of the musquet.1786, Francis Grose, A Treatise on Ancient Armour and Weapons, page xvi
2. 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.

See all 4 meanings of bayonet