Yes, iotas is a Scrabble word!
...and is worth 5 points in Scrabble, and 5 points in Words with Friends
iotas
Noun
1. A tiny or scarcely detectable amount
2. The 9th letter of the Greek alphabet
What Scrabble words can I make with the letters in iotas?
5 Letter Words
4 Letter Words
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3 Letter Words
2 Letter Words