What It Scores
YAH is a valid word in the tournament list this site uses. Tile values only, before any premium square: 9 in Scrabble, 9 in Words With Friends, 9 in Wordfeud. The letters break down as Y4 A1 H4.
Anagrams of YAH (1)
Same letters, different order. Any of these plays the same tiles for the same score.
Words Made From The Letters In YAH
4 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.
2 letter words (4)
Longer Words Containing YAH
YAH appears inside each of these, which is what makes it worth knowing as a hook.
Next: the Word Unscrambler for any letters at all, and the two and three letter lists. Full entry and definition at Merriam-Webster.