What It Scores
FIZGIGS is a valid word in the tournament list this site uses. Tile values only, before any premium square: 21 in Scrabble and 23 in Words With Friends. The letters break down as F4 I1 Z10 G2 I1 G2 S1.
At seven letters this plays a whole rack, which is a bingo and worth 71 in Scrabble once the 50 point bonus lands.
Words Made From The Letters In FIZGIGS
19 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 (2)
4 letter words (4)
3 letter words (9)
2 letter words (4)
Next: the Word Unscrambler for any letters at all. Full entry and definition at Merriam-Webster.