What It Scores
MAST is a valid word in the tournament list this site uses. Tile values only, before any premium square: 6 in Scrabble, 6 in Words With Friends, 6 in Wordfeud. The letters break down as M3 A1 S1 T1.
Anagrams of MAST (2)
Same letters, different order. Any of these plays the same tiles for the same score.
Words Made From The Letters In MAST
14 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 (8)
2 letter words (6)
Longer Words Containing MAST
MAST 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.