Yes, retool is a Scrabble word!
...and is worth 6 points in Scrabble, and 7 points in Words with Friends
retool
Verb
1. Revise or reorganize, especially for the purpose of updating and improving
2. Provide (a workshop or factory) with new tools
What Scrabble words can I make with the letters in retool?
6 Letter Words
4 Letter Words
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3 Letter Words
2 Letter Words