O4
What does O4 mean in Governmental?
This page explains the full form, abbreviation, and meaning of O4 in the Governmental category.
O4 stands for:
- Officer grade: Captain or Colonel
- Officer grade: Commander or Lieutenant Colonel
- Officer grade: Lieutenant Commander or Major
O4 is an abbreviation that can have different meanings depending on the context in which it is used.
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Other meanings of O4
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