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
   - beauty, beaut, lulu, knockout

Derived forms: killers

See also: kill

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 Killer, the Koala

• organised
• organised crime
• organised labour
• organised religion
• organiser
• organism
• organismal
• organismic
• organist
• organizable
• organization
• organization chart
• organization expense
• Organization for the Prohibition of Chemical Weapons
• organization man
• Organization of American States
• Organization of Petroleum-Exporting Countries
• Organization of the Oppressed on Earth
• organizational
• organizational chart
• organizationally
• organize
• organized
• organized crime
• organized labor