What It Scores
ZIZZING is a valid word in the tournament list this site uses. Tile values only, before any premium square: 35 in Scrabble and 36 in Words With Friends. The letters break down as Z10 I1 Z10 Z10 I1 N1 G2.
At seven letters this plays a whole rack, which is a bingo and worth 85 in Scrabble once the 50 point bonus lands.
Words Made From The Letters In ZIZZING
11 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.
4 letter words (3)
3 letter words (6)
2 letter words (2)
Next: the Word Unscrambler for any letters at all. Full entry and definition at Merriam-Webster.