Glossary Archive

A short length of line used to secure an object such as a knife

To secure firmly with a rope or line

The lowest level that sea tides can reach under normal meteorological conditions, based on astronomical influences such as the gravitational pull of the moon and sun. Lowest Astronomical Tide (LAT) is a tidal datum used as a reference point for charting and navigation. It represents the lowest predicted tide level that can occur due to...

Buoy, or post used to mark Port and Starboard sides of a channel

The angular distance of a location on Earth's surface, measured in degrees(°), minutes('), and seconds('') north or south of the equator which is defined as 00° (degrees). Latitude is one of the two primary coordinates used in navigation and cartography to pinpoint a specific location on the Earth's surface. It is expressed in degrees (°),...

A storage compartment located in the stern (aft) of a boat, typically used for stowing gear, equipment, or provisions. A lazarette is a compartment found in the aft section of a boat or ship, often beneath the deck. It is primarily used for storage and can hold a variety of items, such as ropes, fenders,...

A network of cordage rigged to a point on the mast and to a series of points on either side of the boom that cradles and guides the sail onto the boom when the sail is lowered.

The International Maritime Signal Flag Lima. Meaning Stop immediately.If appended by a Numeral Pennant, Latitude (the first 2 digits denote degrees; the last 2 denote minutes.)

Lights positioned to assist entry into harbour or safe passage through a channel. Usually one light above another marks the correct course.

An instrument used in navigation to measure water depth; a line attached to some lead. Usually the line is marked with knots at regular intervals.