killer
/ˈkɪlər/
noun
- A person or thing that kills.
- The police are still searching for the killer.
- That virus is a silent killer because it shows no symptoms at first.
- Lung cancer is a major killer worldwide.
- Something that is very difficult, impressive, or extreme (informal).
- The hike up the mountain was a killer on my legs.
- Her new song is an absolute killer.
- That final exam was a killer.
adjective
- Causing death or destruction.
- The storm brought killer winds that knocked down trees.
- The disease has a killer effect on the immune system.
- They developed a killer virus in the lab.
- Very impressive, excellent, or powerful (informal).
- He has a killer instinct in business.
- That was a killer performance by the band.
- She wore a killer dress to the party.