Meaning of KNIFE in English
noun a sword or dagger.
2. knife ·vt to prune with the knife.
3. knife ·vt to cut or stab with a knife.
4. knife ·add. ·vt 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).
5. knife ·noun 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.
Webster English vocab. Английский словарь Webster. 2012