S1O1N1O1B3U1O1Y4S1
14 points
SONOBUOYS is validvalid
SONOBUOY, a buoy that detects and transmits underwater sounds [n]
SONOBUOY, a buoy that detects and transmits underwater sounds [n]
SONOBUOY, a buoy that detects and transmits underwater sounds [n]
SONOBUOY, a buoy that detects and transmits underwater sounds [n]