CINQUAIN is a playable word

cinquain Scrabble® Dictionary

noun
pl. cinquains
a stanza of five lines
31 Playable Words can be made from "CINQUAIN"
   2-Letter Words (7 found)
   3-Letter Words (8 found)
   4-Letter Words (7 found)
   5-Letter Words (3 found)
   6-Letter Words (4 found)
   7-Letter Words (1 found)
   8-Letter Words (1 found)