Commodore (noun)

1. A naval officer of high rank, the commander of a group of ships.
2. A naval officer of high rank, the commander of a naval base or station.
3. A senior officer in charge of a club or organization.
4. A person who holds the highest rank in a club, society, or organization.

Origin:

The word commodore is derived from the french word "commandeur" which means "commander" or "leader" and was originally used in the navy to designate the commander of a group of ships.

Examples:

1. He was promoted to commodore after several years of service in the Navy.
2. The commodore was the commander of the naval base.
3. He was elected as the commodore of the yacht club.
4. The commodore of the organization was responsible for the overall direction of the organization.
5. The commodore's duty is to oversee the operations of the navy.