COJOINING is a playable word

cojoin Scrabble® Dictionary

verb
cojoined, cojoining, cojoins
to join together
53 Playable Words can be made from "COJOINING"
   2-Letter Words (7 found)
   3-Letter Words (14 found)
   4-Letter Words (12 found)
   5-Letter Words (11 found)
   6-Letter Words (5 found)
   7-Letter Words (3 found)
   9-Letter Words (1 found)