What It Scores
MARKKAS is a valid word in the tournament list this site uses. Tile values only, before any premium square: 17 in Scrabble and 17 in Words With Friends. The letters break down as M3 A1 R1 K5 K5 A1 S1.
At seven letters this plays a whole rack, which is a bingo and worth 67 in Scrabble once the 50 point bonus lands.
Words Made From The Letters In MARKKAS
67 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.
6 letter words (4)
5 letter words (13)
4 letter words (24)
3 letter words (20)
2 letter words (6)
Next: the Word Unscrambler for any letters at all. Full entry and definition at Merriam-Webster.