noun

1. A place on the coast at which ships can shelter, or dock to load and unload cargo or passengers.

2. A town or city containing such a place, a port city.

3. The left-hand side of a vessel, including aircraft, when one is facing the front. Used to unambiguously refer to directions relative to the vessel structure, rather than to a person or object on board.

Synonyms: backboard, larboard, left, harbour, haven, harbour city, harbour town, port city

verb

1. To turn or put to the left or larboard side of a ship; said of the helm.

   “Port your helm!”

adjective

1. Of or relating to port, the left-hand side of a vessel when facing the bow.

   “on the port side”

Synonyms: backboard, larboard, left