- (Abbr. Com.) A commissioned rank formerly used in the U.S. Navy that was above captain and below rear admiral. Abolished in 1899, it was restored temporarily during World War II.
- One who holds this rank.
- Used as an unofficial designation for a captain in the British Navy temporarily in command of a fleet division or squadron.
- The senior captain of a naval squadron or merchant fleet.
- The presiding officer of a yacht club.
[Obsolete commandore, probably from Dutch komandeur, commander, from French commandeur, from Old French, from comander, to command. See command.]






