The word backbreaking uses 12 letters:aabbcegikknr.
BACKBREAKING is playable in:
backbreaking is a valid word in this word list. For a definition, see the external dictionary links below.
Try a search for backbreaking in these online resources (some words may not be found):
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Unscramble words found within backbreaking
Words formed by adding one letter
Adding one letter to backbreaking does not form any other word in Words With Friends word list.