- 1 a person who is in a position of authority in the armed forces army/air force/naval, etc. officers The matter was passed on to me, as your commanding officer. see also petty officer, warrant officer
- 2 (often in compounds) a person who is in a position of authority in the government or a large organization a customs/prison/court officer officers of state (= people in high positions in the government) see also chief executive officer, press officer, probation officer
- 3(often used as a form of address) = police officer the officer in charge of the case the investigating officer Yes, officer, I saw what happened.
- 4 a title for a police officer Officer Daley
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