What rank does the abbreviation O-8 refer to in the Marine Corps?

The abbreviation O-8 corresponds to the rank of Major General in the Marine Corps. In the context of military ranks, the "O" denotes that it is an officer rank, while the number indicates the level within that category. An O-8 is specifically defined as a two-star general officer rank, which is the rank of Major General.

In the hierarchy of Marine Corps ranks, Major General falls above Brigadier General (O-7) and below Lieutenant General (O-9), making it the correct identification for the O-8 ranking. Understanding these distinctions is crucial for recognizing the structure and organization of military ranks, particularly for those in or studying naval or military service.