Knife /(nīf)/

Knife

n.

pl. Knives ((nīvz))

  1. 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..
  2. A sword or dagger.
    The coward conquest of a wretch's knife.

Phrases & Compounds
Knife grass
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.

Knife

v. t.

imp. & p. p. Knifed; p. pr. & vb. n. Knifing

  1. To prune with the knife. (Hort.)
  2. To cut or stab with a knife. [Low]
  3. Fig.: To stab in the back; to try to defeat by underhand means, esp. in politics; to vote or work secretly against (a candidate of one's own party). [Slang, U. S.]