Enter a clue or pattern or both:
The Clue
Underwater detector (5 letter answer)
The Answer
SONAR
Tags
Notes
The answer SONAR is seen frequently, appearing about once every 110 puzzles.
Related Clues
Blip maker
Destroyer detector
Destroyer equipment
Destroyer installation
Destroyer's apparatus
Detection device
Detector at sea
Echo analyzer
Fish locator
Kind of signal
Marine detector
Naval apparatus
Navigation aid
Radar's kin
Salvager's equipment
Salvager's system
Salvaging aid
School locator?
Sea tracker
Sub detector
Sub finder
Sub locator
Sub seeker
Sub spotter
Sub standard?
Submarine apparatus
Submarine detector
Submarine equipment
Submarine finder
Sub's "ears"
Tracking device
Whale tracer
Aid in removal of mines
Anti-sub defense
Anti-sub device
Red October detector
Ship's depth finder
Sub-detection apparatus
Sub-finding device
Submarine-detecting system
The British call this asdic
Underwater-mine finder, e.g.
Definition
SONAR as a noun:
1. (sonar, echo sounder, asdic) = a measuring instrument that sends out an acoustic pulse in water and measures distances in terms of the time for the echo of the pulse to return; "sonar is an acronym for sound navigation ranging"; "asdic is an acronym for antisubmarine detection investigation committee"