O3: Officer grade: Lieutenant or Captain
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What is the full form of O3?
O3 stands for Officer grade: Lieutenant or Captain. Fullformexpand.com has 1 other full form for abbreviation O3.
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"O3." Fullformexpand.com, https://www.fullformexpand.com/o3/442118. Accessed 6 Jan. 2026.
Fullformexpand.com, 2026. "O3." Accessed January 6, 2026. https://www.fullformexpand.com/o3/442118.
"O3." (n.d.). Fullformexpand.com. Retrieved January 6, 2026, from https://www.fullformexpand.com/o3/442118.
O3. (2026). Fullformexpand.com. Available at: https://www.fullformexpand.com/o3/442118 (Accessed: 6 January 2026).
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