Jisho

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Noun
1. commander; commanding officer; CO
Wikipedia definition
2. Commanding officerThe commanding officer (CO) is the officer in command of a military unit. Typically, the commanding officer has ultimate authority over the unit, and is usually given wide latitude to run the unit as he sees fit, within the bounds of military law.
Read “Commanding officer” on English Wikipedia
Read “指揮官” on Japanese Wikipedia
Read “Commanding officer” on DBpedia

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