executive officerexecutive officer
Mil. an officer who is chief assistant to the commanding officer
- a. The officer second in command of a military unit smaller than a division.b. The officer second in command of a naval unit.
- A person holding executive power in an organization.
(plural executive officers)
- second in command of a military unit or ship
On a US Navy ship, one might say "XO, you have the Con." which means "Executive Officer, you have control of the ship."