BACKRUSHES is a playable word

backrush Scrabble® Dictionary

noun
pl. backrushes
the seaward return of water from a wave
517 Playable Words can be made from "BACKRUSHES"
   2-Letter Words (17 found)
   8-Letter Words (5 found)
   9-Letter Words (2 found)
   10-Letter Words (1 found)