HORSES is a playable word

horse Scrabble® Dictionary

verb
horsed, horsing, horses
to provide with a horse (a large, hoofed mammal)
64 Playable Words can be made from "HORSES"
   2-Letter Words (12 found)
   3-Letter Words (18 found)
   4-Letter Words (19 found)
   5-Letter Words (11 found)
   6-Letter Words (4 found)