The Collaborative International Dictionary
Knife \Knife\ (n[imac]f), n.; pl. Knives (n[imac]vz). [OE. knif, AS. cn[=i]f; akin to D. knijf, Icel. kn[=i]fr, Sw. knif, Dan. kniv.]
An instrument consisting of a thin blade, usually of steel and having a sharp edge for cutting, fastened to a handle, but of many different forms and names for different uses; as, table knife, drawing knife, putty knife, pallet knife, pocketknife, penknife, chopping knife, etc..
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A sword or dagger.
The coward conquest of a wretch's knife.
--Shak.Knife grass (Bot.) a tropical American sedge ( Scleria latifolia), having leaves with a very sharp and hard edge, like a knife.
War to the knife, mortal combat; a conflict carried to the last extremity.