Meaning of killer
Pronunciation: (kil'ur), [key]
- a person or thing that kills.
- a device used by a post office for printing cancellations on postage stamps.
- a mark of cancellation made on a postage stamp.
- something or someone having a formidable impact, devastating effect, etc.: The math test was a real killer.
- severe; powerful: a killer cold.
- killer (Thesaurus)