sonar

1. A system using transmitted and reflected underwater sound waves to detect and locate submerged objects or measure the distance to the floor of a body of water.

2. An apparatus, as one in a submarine, using sonar.

3. Echolocation.

4. A device for detecting the presence of a vessel (as a submarine) by the sound it emits in water.

5. A method or device for detecting and locating objects especially underwater by means of sound waves sent out to be reflected by the objects.

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Top Words by points	Points	Word Game
roans	5	Scrabble

2 Letters	Scrabble® Points
ar	2
as	2
na	2
no	2
so	2
on	2
or	2
os	2
an	2

3 Letters	Scrabble® Points
ors	3
aro	3
son	3
san	3
ras	3
ran	3
ons	3
ars	3
nor	3
nos	3
oar	3
ora	3

4 Letters	Scrabble® Points
naos	4
roan	4
osar	4
oars	4
soar	4
sora	4
sorn	4
aros	4

5 Letters	Scrabble® Points
roans	5
arson	5
sonar	5