Boatswain (noun)

1. A naval officer in charge of equipment and crew on a ship.
2. A sailor who is responsible for the maintenance and repair of a ship's boats and other equipment.

Origin:

The word 'boatswain' is derived from the old english 'batswegen' which was the equivalent rank in the royal navy. the word is a variant of the old norse word 'batsveinn' which meant 'boat servant'. the word has been in use since the 16th century.

Examples:

1. The boatswain was the first to report the damage to the captain.
2. The boatswain led the crew in the singing of sea shanties.
3. The boatswain made sure that the lifeboats were properly maintained.
4. The boatswain was the one who blew the whistle to signal the start of the workday on the ship.
5. The boatswain was responsible for the upkeep of the ship's anchor.