Sonar (an abbreviation for SOund Navigation And Ranging)
Explanation:
Sonar (initially an abbreviation for SOund Navigation And Ranging) is a way for navigating, speaking with, and detecting matters on or below the floor of the water, consisting of different vessels, via way of means of the usage of sound propagation (normally underwater, as in submarine navigation).
Sonar may be used to locate "targets" withinside the water and to measure the echo traits of these targets.
