You know what it looks like… but what is it called?
TAKE THE QUIZ“boatswain's”
The following 4 entries include the term boatswain's.
boatswain's chair
noun: a wooden board slung by a rope and used to sit on while at work aloft or over the side of a ship
boatswain's locker
noun: a ship's locker for the small equipment (such as tackle) used by the deck force
boatswain's mate
noun: an assistant to the boatswain
boatswain's pipe
noun: a silver whistle used by a boatswain's mate (as in relaying orders to the crew or giving orders to winch and crane operators)