Commodore

1. n. A familiar for the flagship, or for the principal vessel of a squadron or fleet.
2. n. An officer who ranks next above a captain; sometimes, by courtesy, the senior captain of a squadron. The rank of commodore corresponds with that of brigadier general in the army.
3. n. A captain commanding a squadron, or a division of a fleet, or having the temporary rank of rear admiral.
4. n. A title given by courtesy to the senior captain of a line of merchant vessels, and also to the chief officer of a yachting or rowing club.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.