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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 sum

1 definition found

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

  sum
      n 1: a quantity of money; "he borrowed a large sum"; "the amount
           he had in cash was insufficient" [syn: {sum}, {sum of
           money}, {amount}, {amount of money}]
      2: a quantity obtained by the addition of a group of numbers
         [syn: {sum}, {amount}, {total}]
      3: the final aggregate; "the sum of all our troubles did not
         equal the misery they suffered" [syn: {sum}, {summation},
         {sum total}]
      4: the choicest or most essential or most vital part of some
         idea or experience; "the gist of the prosecutor's argument";
         "the heart and soul of the Republican Party"; "the nub of the
         story" [syn: {kernel}, {substance}, {core}, {center},
         {centre}, {essence}, {gist}, {heart}, {heart and soul},
         {inwardness}, {marrow}, {meat}, {nub}, {pith}, {sum}, {nitty-
         gritty}]
      5: the whole amount [syn: {sum}, {total}, {totality},
         {aggregate}]
      6: a set containing all and only the members of two or more
         given sets; "let C be the union of the sets A and B" [syn:
         {union}, {sum}, {join}]
      v 1: be a summary of; "The abstract summarizes the main ideas in
           the paper" [syn: {summarize}, {summarise}, {sum}, {sum up}]
      2: determine the sum of; "Add all the people in this town to
         those of the neighboring town" [syn: {total}, {tot}, {tot
         up}, {sum}, {sum up}, {summate}, {tote up}, {add}, {add
         together}, {tally}, {add up}]

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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