Yes, quires is a Scrabble word!
...and is worth 15 points in Scrabble, and 16 points in Words with Friends
quires
Noun
1. A quantity of paper; 24 or 25 sheets
What Scrabble words can I make with the letters in quires?
6 Letter Words
5 Letter Words
4 Letter Words
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3 Letter Words
2 Letter Words