SOBER is a playable word

sober Scrabble® Dictionary

adjective
soberer, soberest
having control of one's faculties
verb
sobered, sobering, sobers
to make sober
42 Playable Words can be made from "SOBER"
   2-Letter Words (9 found)
   3-Letter Words (16 found)
   4-Letter Words (13 found)
   5-Letter Words (4 found)