What does O4 stand for?

O4 have more than multiple meanings and one must understand the context of the text to pick out the correct definition of O4. Out of its multiple usage, O4 can be used in any of the following field(s):

All the possible full forms of O4 are provided below with meaning and definition. User can also visit each expanded form to read detailed definition of O4 and its example usage.

O4 » Officer grade: Captain or Colonel Government - Military Advertisement: O4 » Officer grade: Commander or Lieutenant Colonel Government - Military O4 » Officer grade: Lieutenant Commander or Major Government - Military More full forms :
O5 O9 OA What is the full form of O4 ? O4 can be expanded as Officer grade: Lieutenant Commander or MajorWhat does O4 mean? Meaning of O4 is Officer grade: Lieutenant Commander or Major