Noun

• S: (n) knife (edge tool used as a cutting instrument; has a pointed blade with a sharp edge and a handle)
• direct hyponym / full hyponym
• part meronym
• direct hypernym / inherited hypernym / sister term
• derivationally related form
• S: (n) knife (a weapon with a handle and blade with a sharp point)
• S: (n) tongue, knife (any long thin projection that is transient) "tongues of flame licked at the walls"; "rifles exploded quick knives of fire into the dark"

Verb

• S: (v) knife, stab (use a knife on) "The victim was knifed to death"