RESEAU is a playable word

reseau Scrabble® Dictionary

noun
pl. reseaus or reseaux
a filter screen for making color films
53 Playable Words can be made from "RESEAU"
   2-Letter Words (7 found)
   3-Letter Words (18 found)
   4-Letter Words (18 found)
   5-Letter Words (8 found)
   6-Letter Words (2 found)