Read the dictionary definition of knife. All definitions for this word.
1. edge tool used as a cutting instrument; has a pointed blade with a sharp edge and a handle
2. a weapon with a handle and blade with a sharp point
3. any long thin projection that is transient
1. tongues of flame licked at the walls
2. rifles exploded quick knives of fire into the dark
4. use a knife on
1. The victim was knifed to death