SEASIDES is a playable word

seaside Scrabble® Dictionary

noun
pl. seasides
the seashore
80 Playable Words can be made from "SEASIDES"
   2-Letter Words (11 found)
   3-Letter Words (17 found)
   6-Letter Words (9 found)
   7-Letter Words (3 found)
   8-Letter Words (2 found)