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Full form of O1 is Officer grade: Ensign or 2nd Lieutenant
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Others
Language:
English
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Frequently Asked Questions
What is the full form of O1?
O1 stands for Officer grade: Ensign or 2nd Lieutenant. Fullformexpand.com has 1 other full form of O1 abbreviation.
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Citations
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"O1." Fullformexpand.com, https://www.fullformexpand.com/o1/officer-grade-ensign-or-2nd-lieutenant. Accessed 5 Aug. 2026.
Fullformexpand.com, 2026. "O1." Accessed August 5, 2026. https://www.fullformexpand.com/o1/officer-grade-ensign-or-2nd-lieutenant.
"O1." (n.d.). Fullformexpand.com. Retrieved August 5, 2026, from https://www.fullformexpand.com/o1/officer-grade-ensign-or-2nd-lieutenant.
O1. (2026). Fullformexpand.com. Available at: https://www.fullformexpand.com/o1/officer-grade-ensign-or-2nd-lieutenant (Accessed: 5 August 2026).
| Abbreviation | Full Form | Category |
|---|---|---|
| $O1 | Pipe file (DOS) |
Others
|
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O1 Full Form
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