knife

1. (transitive) To cut with a knife.transitive

2. (transitive) To use a knife to injure or kill by stabbing, slashing, or otherwise using the sharp edge of the knife as a weapon.Examples: "She was repeatedly knifed in the chest."; "One day his sergeant began to cane him, on which, seizing his knife, he knifed the sergeant : he knifed the privates : he knifed until he was finally overpowered, and, brought before a court-martial, was condemned to fifteen years at the galleys."; "The plane has been hijacked. They've already knifed a guy."transitive

3. (intransitive) To cut through as if with a knife.Examples: "The boat knifed through the water."intransitive

4. (transitive) To betray, especially in the context of a political slate.transitive

5. (transitive) To positively ignore, especially in order to denigrate; compare cut.transitive