A Quick and Simple Dictionary

knife

1. Noun.  A utensil or a tool designed for cutting, consisting of a flat piece of hard material, usually steel or other metal (the blade), usually sharpened on one edge, attached to a handle. The blade may be pointed for piercing.
2. Noun.  A weapon designed with the aforementioned specifications intended for slashing and/or stabbing and too short to be called a sword. A dagger.
3. Noun.  Any blade-like part in a tool or a machine designed for cutting, such as the '''knives''' for a chipper.
4. Verb.  (transitive) To cut with a '''knife'''.
5. Verb.  (transitive) To use a '''knife''' to injure or kill by stabbing, slashing, or otherwise using the sharp edge of the '''knife''' as a weapon.
6. Verb.  (intransitive) To cut through as if with a '''knife'''.
7. Verb.  (transitive) To betray, especially in the context of a political slate.
8. Verb.  (transitive) To positively ignore, especially in order to denigrate. compare cut.