SEMESTERS is a playable word

semester Scrabble® Dictionary

noun
pl. semesters
a period constituting half of an academic year
111 Playable Words can be made from "SEMESTERS"
   2-Letter Words (7 found)
   3-Letter Words (16 found)
   7-Letter Words (7 found)
   8-Letter Words (1 found)
   9-Letter Words (1 found)