Skip to definition.
Get the FREE one-click dictionary software for Windows or the iPhone/iPad and Android apps

Noun: killer  ki-lu(r)
  1. Someone who causes the death of a person or animal
    - slayer
  2. The causal agent resulting in death
    "heart disease is the biggest killer in the United States";
    - cause of death
  3. A difficulty that is hard to deal with
    "that exam was a real killer"
  4. Predatory black-and-white toothed whale with large dorsal fin; common in cold seas
    - killer whale, orca, grampus, sea wolf, Orcinus orca
  5. [informal] An outstanding example of its kind
    "his roses were killers";
    - beauty, beaut [informal], blinder [Brit, informal], lulu [informal], cracker [Brit, informal], knockout [informal]

Derived forms: killers

Type of: causal agency, causal agent, cause, difficulty, dolphin, example, exemplar, good example, individual, model, mortal, person, somebody, someone, soul

Part of: genus Orcinus, Orcinus

Encyclopedia: Killer, the Koala