SELSYNS is a playable word

selsyn Scrabble® Dictionary

noun
pl. selsyns
a type of remote-control device
31 Playable Words can be made from "SELSYNS"
   2-Letter Words (5 found)
   3-Letter Words (11 found)
   4-Letter Words (10 found)
   5-Letter Words (2 found)
   6-Letter Words (1 found)
   7-Letter Words (2 found)