Killing : nf (word coming from kill).
The word "kill" has several meanings:
1. Formerly: Slaughterhouse Private.
2. Common meaning: Action of killing by mass gain, wildly (synonyms: butchery, carnage, hecatomb, massacre).
3. Colloquial meaning: It's a killer: it's great, sensational (it kills, it's deadly).
Ce cake is a killer!