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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 backup

1 definition found

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

  backup
      n 1: an accumulation caused by clogging or a stoppage; "a
           traffic backup on the main street"; "he discovered a backup
           in the toilet"
      2: someone who takes the place of another (as when things get
         dangerous or difficult); "the star had a stand-in for
         dangerous scenes"; "we need extra employees for summer fill-
         ins" [syn: {stand-in}, {substitute}, {relief}, {reliever},
         {backup}, {backup man}, {fill-in}]
      3: a musical part (vocal or instrumental) that supports or
         provides background for other musical parts [syn:
         {accompaniment}, {musical accompaniment}, {backup},
         {support}]
      4: (computer science) a copy of a file or directory on a
         separate storage device; "he made a backup in case the
         original was accidentally damaged or erased" [syn: {backup},
         {computer backup}]
      5: the act of providing approval and support; "his vigorous
         backing of the conservatives got him in trouble with
         progressives" [syn: {backing}, {backup}, {championship},
         {patronage}]

Source : WordNet ® Princeton University. 2010.

Use this dictionary checker to learn more about a word - find out its meaning and also make sure whether that word is a valid word in any of these dictionaries (used by popular word games). Here is the list of dictionaries it checks for :

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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