What It Scores
IOTA is a valid word in the tournament list this site uses. Tile values only, before any premium square: 4 in Scrabble, 4 in Words With Friends, 4 in Wordfeud. The letters break down as I1 O1 T1 A1.
Words Made From The Letters In IOTA
13 shorter words come out of these tiles. On a board that matters more than the long play, because a short word on a premium square often beats a long one on plain squares.
3 letter words (5)
2 letter words (8)
Longer Words Containing IOTA
IOTA appears inside each of these, which is what makes it worth knowing as a hook.
Next: the Word Unscrambler for any letters at all. Full entry and definition at Merriam-Webster.