JOINDER is a playable word

joinder Scrabble® Dictionary

noun
pl. joinders
a joining of parties in a lawsuit
82 Playable Words can be made from "JOINDER"
   2-Letter Words (16 found)
   3-Letter Words (24 found)
   5-Letter Words (7 found)
   6-Letter Words (5 found)
   7-Letter Words (1 found)