COEXTEND is a playable word

coextend Scrabble® Dictionary

verb
coextended, coextending, coextends
to extend through the same space or time as another
89 Playable Words can be made from "COEXTEND"
   2-Letter Words (14 found)
   3-Letter Words (29 found)
   5-Letter Words (12 found)
   6-Letter Words (6 found)
   8-Letter Words (1 found)