REGIMEN is a playable word

regimen Scrabble® Dictionary

noun
pl. regimens
a systematic plan
67 Playable Words can be made from "REGIMEN"
   2-Letter Words (9 found)
   3-Letter Words (25 found)
   4-Letter Words (18 found)
   5-Letter Words (10 found)
   6-Letter Words (4 found)
   7-Letter Words (1 found)