RUBABOO is a playable word

rubaboo Scrabble® Dictionary

noun
pl. rubaboos
a type of soup
37 Playable Words can be made from "RUBABOO"
   2-Letter Words (5 found)
   3-Letter Words (19 found)
   4-Letter Words (11 found)
   5-Letter Words (1 found)
   7-Letter Words (1 found)