What It Scores
GUMBOIL is a valid word in the tournament list this site uses. Tile values only, before any premium square: 12 in Scrabble and 15 in Words With Friends. The letters break down as G2 U1 M3 B3 O1 I1 L1.
At seven letters this plays a whole rack, which is a bingo and worth 62 in Scrabble once the 50 point bonus lands.
Words Made From The Letters In GUMBOIL
69 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.
5 letter words (4)
4 letter words (18)
3 letter words (30)
2 letter words (17)
Next: the Word Unscrambler for any letters at all. Full entry and definition at Merriam-Webster.