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Learner's Dictionary
sonar
1 ENTRIES FOUND:
sonar
(noun)
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sonar
/
ˈ
soʊˌnɑɚ/
noun
sonar
/
ˈ
soʊˌnɑɚ/
noun
Learner's definition of SONAR
[
noncount
]
:
a device used for finding things that are underwater by using sound waves
They detected the submarine by using
sonar
.
a
sonar
signal
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