Yes, doxy is a Scrabble word!
...and is worth 15 points in Scrabble, and 14 points in Words with Friends
doxy
Noun
1. A woman who cohabits with an important man
What Scrabble words can I make with the letters in doxy?
3 Letter Words
2 Letter Words
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Words that can be created with an extra letter added to doxy:
E:deoxy