SWISHEST is a playable word

swish Scrabble® Dictionary

verb
swished, swishing, swishes
to move with a prolonged hissing sound
adjective
swisher, swishest
smart, fashionable
108 Playable Words can be made from "SWISHEST"
   2-Letter Words (13 found)
   3-Letter Words (24 found)
   7-Letter Words (1 found)
   8-Letter Words (1 found)