Glossary
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TermDefinition
- General Nautical Terminology Landfall
The event of a vessel sighting or reaching land after a voyage at sea.
Landfall is a term used in the maritime world to describe the moment...
More Details - General Nautical Terminology LanyardA short length of line used to secure an object such as a knife
- General Nautical Terminology Lash DownTo secure firmly with a rope or line
- General Nautical Terminology, Navigation LAT
The lowest level that sea tides can reach under normal meteorological conditions, based on astronomical influences such as the gravitational pull...
More Details - General Nautical Terminology Lateral MarkBuoy, or post used to mark Port and Starboard sides of a channel
- General Nautical Terminology, Navigation Latitude
The angular distance of a location on Earth's surface, measured in degrees(°), minutes('), and seconds('') north or south of the equator which is...
More Details - General Nautical Terminology Lazarette
A storage compartment located in the stern (aft) of a boat, typically used for stowing gear, equipment, or provisions.
A lazarette is a...
More Details - General Nautical Terminology Lazy JacksA 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... More Details
- Flag / Pennant, Signals & Communication Code Flag Lima (L)

The International Maritime Signal Flag Lima.
Meaning
Stop immediately.
More Details
If appended by a Numeral Pennant, Latitude (the first 2 digits... - General Nautical Terminology Leading LightsLights positioned to assist entry into harbour or safe passage through a channel. Usually one light above another marks the correct course.
- General Nautical Terminology LeadlineAn instrument used in navigation to measure water depth; a line attached to some lead. Usually the line is marked with knots at regular intervals.
- General Nautical Terminology LeagueA unit of length, normally equal to three nautical miles.
- Courses, RYA Learn to WingsurfThe RYA Learn to Wingsurf course introduces participants to the basics of wingsurfing. Participants learn how to control the wing, balance on the... More Details
- General Nautical Terminology LeeThe direction towards which the wind blow
- General Nautical Terminology LeechThe trailing edge of a triangular sail
- General Nautical Terminology Lee-oh!Command given by helm when tacking as the bow passes through the wind. Tells the crew to reset the sails on the new course.
- General Nautical Terminology, Weather (Meteorology) Leeshore
A shoreline that lies downwind of a vessel, posing a potential hazard as the wind pushes the vessel towards it.
A leeshore is a concept in...
More Details - General Nautical Terminology Leeward
The side of a vessel or an object that is sheltered from the wind, opposite to the windward side.
Leeward is a crucial concept for...
More Details - Flag Semaphore, Signals & Communication Letters to Follow (Flag Semaphore)

This flag semaphore signal indicates a change from numbers to letters (Letters to follow). This switches back from numbers to the default...
More Details - Courses, RYA Level 1 Start Powerboating (PB1)The RYA Level 1 Start Powerboating course introduces beginners to the basics of powerboat handling. Participants learn low-speed maneuvers, safety... More Details

