COTEAU is a playable word

coteau Scrabble® Dictionary

noun
pl. coteaux or coteaus
the higher ground of a region
41 Playable Words can be made from "COTEAU"
   2-Letter Words (8 found)
   3-Letter Words (23 found)
   4-Letter Words (8 found)
   5-Letter Words (1 found)
   6-Letter Words (1 found)