- Toward the rear (stern) of the boat. Behind.
- Secure hatches and loose objects both within the hull and on deck.
- A receding current.
- An overtaking sea that comes from astern.
- A term used to describe the vessel which must yield in meeting, crossing, or overtaking situations.
- The direction in which a vessel’s bow points at any given time.
- A measure of speed equal to one nautical mile (6076 feet) per hour.
- The distance in degrees east or west of the meridian at Greenwich, England.
- The left side of a boat looking forward. A harbor.
- Lights required to be shown on boats underway between sundown and sunup.
- To make fast.
- The periodic rise and fall of water level in the oceans.
- Vessel in motion, i.e., when not moored, at anchor, or aground.
- Toward the direction from which the wind is coming.