ROOSER is a playable word

rooser Scrabble® Dictionary

noun
pl. roosers
one that rooses
27 Playable Words can be made from "ROOSER"
   2-Letter Words (7 found)
   3-Letter Words (10 found)
   4-Letter Words (7 found)
   5-Letter Words (2 found)
   6-Letter Words (1 found)