noun , verb
■ noun
/ ˈbeɪənət; NAmE / a long, sharp knife that is fastened onto the end of a rifle and used as a weapon in battle
■ verb
/ˈbeɪənət; ˌbeɪəˈnet/ [ vn ] to push a bayonet into sb in order to kill them
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WORD ORIGIN
late 17th cent. (denoting a kind of short dagger): from French baïonnette , from Bayonne , the name of a town in SW France, where they were first made.