GOBOS is a playable word

gobo Scrabble® Dictionary

noun
pl. gobos or goboes
a device used to shield a microphone from extraneous sounds
17 Playable Words can be made from "GOBOS"
   2-Letter Words (4 found)
   3-Letter Words (7 found)
   4-Letter Words (5 found)
   5-Letter Words (1 found)