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Valid in these dictionaries

TWL/NWL (Scrabble US/CA/TH)
SOWPODS/CSW (Scrabble UK / ALL)
ENABLE (Words with Friends)

Meaning of killer

1 definition found

From WordNet (r) 3.0 (2006) [wn]:

  killer
      n 1: someone who causes the death of a person or animal [syn:
           {killer}, {slayer}]
      2: the causal agent resulting in death; "heart disease is the
         biggest killer in the United States" [syn: {cause of death},
         {killer}]
      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 [syn: {killer whale}, {killer},
         {orca}, {grampus}, {sea wolf}, {Orcinus orca}]

Source : WordNet ® Princeton University. 2010.

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OCTWL / TWL : The official dictionary for scrabble game in United States, Canada and Thailand.
SOWPODS / CSW : UK and the rest of the world uses this dictionary for various word games including scrabble.
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