Word:   
Definitions of killer:
  • noun:   a difficulty that is hard to deal with
    Example: "That exam was a real killer"
  • noun:   someone who causes the death of a person or animal
  • noun:   predatory black-and-white toothed whale with large dorsal fin; common in cold seas
  • noun:   the causal agent resulting in death
    Example: "Heart disease is the biggest killer in the United States"
  • name:  A surname (very rare: popularity rank in the U.S.: #62862)

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