What rank is typically associated with the title "Captain"?

The rank associated with the title "Captain" in the Navy and Marine Corps is typically O6. An O6 rank indicates that the officer holds the position of Captain, which is a senior command rank. In the context of the Navy, a Captain is typically in charge of a ship or a significant shore installation.

This rank is crucial because it signifies a considerable level of responsibility, leadership, and experience. Captains often oversee large groups of personnel and are responsible for the overall operations and administration of their command. Understanding this rank helps in recognizing the hierarchy within military organizations and the levels of authority and responsibility that come with each rank.