SONOBUOYS is a playable word

sonobuoy Scrabble® Dictionary

noun
pl. sonobuoys
a buoy that detects and transmits underwater sounds
84 Playable Words can be made from "SONOBUOYS"
   2-Letter Words (11 found)
   3-Letter Words (27 found)
   5-Letter Words (12 found)
   6-Letter Words (2 found)
   8-Letter Words (1 found)
   9-Letter Words (1 found)