- noun an instrument used for cutting, with a sharp metal blade fixed in a handle
- verb to injure someone using a knife
- noun an attachment on the cutter bar of a mower or combine harvester
- A thin steel blade, one edge of which is sharpened, the whole fitted with a handle. They come in various thicknesses and profiles and sometimes with a serrated or saw edge, for various types of work.
- verb to kill or wound with a knife