SNOWBALL is a playable word

snowball Scrabble® Dictionary

verb
snowballed, snowballing, snowballs
to increase at a rapidly accelerating rate
134 Playable Words can be made from "SNOWBALL"
   2-Letter Words (16 found)
   6-Letter Words (4 found)
   7-Letter Words (1 found)
   8-Letter Words (1 found)