TeachMeFinance.com - explain sonar
sonar 'sonar' is an military term meaning '(DOD) A sonic device used primarily for the detection and location of underwater objects. (This term is derived from the words "sound navigation and ranging.")'.
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Author: Mark McCracken is a corporate trainer and author living in Higashi Osaka, Japan. He is the author of thousands of online articles as well as the Business English textbook, "25 Business Skills in English".