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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. An outstanding example of its kind
    "his roses were killers";
    - beauty, beaut, cracker [Brit], blinder [Brit], knockout, lulu

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