A knot is a unit of speed equaling 1 nautical mile per hour (1.15 miles per hour or 1.852 kilometers per hour).

Port is the nautical term (used on boats and ships) that refers to the left side of a ship, as perceived by a person facing towards the bow (the front of the vessel).

Starboard is the nautical term (used on boats and ships) that refers to the right side of a vessel, as perceived by a person facing towards the bow (the front of the vessel).