- a naval officer above the rank of captain, as a fleet admiral, admiral, vice-admiral, rear admiral, or commodore, who is entitled to display a flag indicating his or her rank.
- (formerly) an officer in command of a fleet, squadron, or group of ships.
Origin of flag officer
First recorded in 1655–65
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for flag officer
On you, every reliance is placed; and I wish I could say as much for every flag-officer afloat.The Two Admirals
J. Fenimore Cooper
His cook or his butler would have said, 'Like the flag-officer done.'
I heard an educated gentleman say, 'Like the flag-officer did.'
Flag-Officer Mervine was relieved in the latter part of September.The Gulf and Inland Waters
A. T. Mahan
"Pass the word for the signal-officer," added the flag-officer.Dikes and Ditches
- an officer in certain navies of the rank of rear admiral or above and entitled to fly its flag
- the head of a boat or yacht club