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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 costa

1 definition found

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

  costa
      n 1: a riblike part of a plant or animal (such as a middle rib
           of a leaf or a thickened vein of an insect wing)
      2: any of the 12 pairs of curved arches of bone extending from
         the spine to or toward the sternum in humans (and similar
         bones in most vertebrates) [syn: {rib}, {costa}]

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.
ENABLE - This is the default dictionary for Words with Friends.

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