SUBJOIN is a playable word

subjoin Scrabble® Dictionary

verb
subjoined, subjoining, subjoins
to add at the end
69 Playable Words can be made from "SUBJOIN"
   2-Letter Words (14 found)
   3-Letter Words (29 found)
   4-Letter Words (19 found)
   5-Letter Words (5 found)
   6-Letter Words (1 found)
   7-Letter Words (1 found)