Glossary
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TermDefinition
- General Nautical Terminology, Weather (Meteorology) Wight
Sea area of the Met Office Shipping Forecast. Covers the Solent and waters around the Isle of Wight off southern England.
After the Isle of...
More Details - General Nautical Terminology Winch
A mechanical device used on boats to haul in or let out heavy loads, typically consisting of a drum or spool around which a rope, cable, or chain...
More Details - General Nautical Terminology Winch Handle
A detachable lever used to operate a winch, providing mechanical advantage for tightening or loosening lines on a sailing vessel.
A winch...
More Details - General Nautical Terminology Windage
Windage refers to the resistance or drag experienced by a boat or ship as it moves through the air. Windage is influenced by the vessel’s shape,...
More Details - General Nautical Terminology WindlassThe winch used for lifting the anchor
- Courses, RYA Windsurfing Advanced RacingThe RYA Windsurfing Advanced Racing course is for competitive windsurfers looking to improve their race performance. Participants learn advanced... More Details
- Courses, RYA Windsurfing Foiling First FlightsThe RYA Windsurfing Foiling First Flights course introduces windsurfers to the exciting world of foiling. Participants learn how to set up and... More Details
- Courses, RYA Windsurfing Foiling Performance FlightsBuilding on initial foiling skills, the RYA Windsurfing Foiling Performance Flights course focuses on refining control and increasing speed.... More Details
- Courses, RYA Windsurfing Foiling Sustained FlightsThe RYA Windsurfing Foiling Sustained Flights course is for experienced foilers looking to master continuous foiling. Participants focus on... More Details
- Courses, RYA Windsurfing Intermediate RacingThe RYA Windsurfing Intermediate Racing course introduces windsurfers to the fundamentals of racing. Participants learn starting procedures, mark... More Details
- Courses, RYA Windsurfing Start RacingThe RYA Windsurfing Start Racing course is perfect for beginners looking to enter the world of competitive windsurfing. Participants learn basic... More Details
- General Nautical Terminology Windward
The direction from which the wind is blowing, or the side of a vessel or object that faces into the wind.
Windward is a crucial concept that...
More Details - Courses, RYA Wingfoiling First FlightsThe RYA Wingfoiling First Flights course is designed for those new to wingfoiling. Participants learn how to handle the wing, balance on a foil... More Details
- Courses, RYA Wingfoiling Sustained FlightsThe RYA Wingfoiling Sustained Flights course is for those who have mastered the basics of wingfoiling and want to focus on continuous flight.... More Details
- Flag Semaphore, Signals & Communication Letter W (Flag Semaphore)

Flag semaphore indicating the letter W.
- Morse Code, Signals & Communication Letter W (Morse Code)
International Morse Code sequence representing the letter W.
- General Nautical Terminology, Weather (Meteorology) WMO
An intergovernmental organization with a membership of 191 Member States and Territories that works to facilitate international cooperation in...
More Details - General Nautical Terminology Working End
The Working end of a rope refers to the part of the rope that is actively being used for a specific task, such as tying a knot, securing a line...
More Details - General Nautical Terminology, Navigation World Geodetic System 1984 (WGS84)
A standard in satellite-derived positions. Charts will indicate if they are calibrated to WGS84 or another system.
WGS84 is the standard...
More Details - General Nautical Terminology, Weather (Meteorology) World Meteorological Organization (WMO)
An intergovernmental organization with a membership of 191 Member States and Territories that works to facilitate international cooperation in...
More Details - Organisation World Sailing (ISAF)
World Sailing, formerly known as the International Sailing Federation (ISAF), is the governing body for the sport of sailing...
More Details - General Nautical Terminology, Navigation WPT
A specific location or reference point on a navigational route, often used to mark progress or changes in course.
A waypoint is a...
More Details - Flag / Pennant, Signals & Communication Code Flag Xray (X)

The International Maritime Signal Flag Xray.
Meaning
Stop carrying out your intentions and watch for my signals.
- Flag Semaphore, Signals & Communication Letter X (Flag Semaphore)

Flag semaphore indicating the letter X.
- Morse Code, Signals & Communication Letter X (Morse Code)
International Morse Code sequence representing the letter X.
- Phonetic Alphabet, Signals & Communication X-Ray
Pronounced: ECKS-ray
The term for the letter X in the NATO Phonetic Alphabet.
- General Nautical Terminology, Navigation XTE
The lateral distance and drift between a vessel's actual position and the intended navigational track or course.
Cross Track Error (XTE) is a...
More Details - General Nautical Terminology Yacht
A yacht is a recreational boat or ship, typically larger than a standard pleasure craft. Yachts are often used for private cruising, racing, or...
More Details - Courses, RYA Yachtmaster Ocean TheoryThe RYA Yachtmaster Ocean Theory course teaches celestial navigation and advanced passage planning for long-distance offshore sailing.... More Details
- Phonetic Alphabet, Signals & Communication Yankee
Pronounced: YANG-kee
The term for the letter Y in the NATO Phonetic Alphabet.
- General Nautical Terminology Yard
A horizontal spar on a sailing vessel attached to the mast and used to support and spread a square sail.
A yard is an essential component of...
More Details - General Nautical Terminology, Weather (Meteorology) Yatchsman's Gale
Nickname for the Beaufort Scale - Force 6
"Yachtsman's gale" is often used to describe the wind strength of Force 6. It gets its name because...
More Details - General Nautical Terminology, Parts of a Boat Yawl
A two-masted sailing vessel with the smaller mizzen mast positioned aft of the rudder post.
A yawl is a type of sailing craft characterised by...
More Details - Flag / Pennant, Signals & Communication Code Flag Yankee (Y)

The International Maritime Signal Flag Yankee.
Meaning
I am dragging my anchor.
- Flag Semaphore, Signals & Communication Letter Y (Flag Semaphore)

Flag semaphore indicating the letter Y.
- Morse Code, Signals & Communication Letter Y (Morse Code)
International Morse Code sequence representing the letter Y.
- Courses, RYA Youth Sailing Scheme Start RacingThe Youth Sailing Scheme Start Racing course introduces young sailors to the fundamentals of dinghy racing. Participants learn starting... More Details
- Courses, RYA Youth Sailing Scheme - Start Sailing Stage 1The RYA Youth Sailing Scheme - Start Sailing Stage 1 is an entry-level course for children aged 8–12. This program introduces young sailors to the... More Details
- Courses, RYA Youth Sailing Scheme - Start Sailing Stage 2Building on Stage 1, the RYA Youth Sailing Scheme - Start Sailing Stage 2 equips young sailors with more advanced techniques. Participants learn... More Details
- Courses, RYA Youth Sailing Scheme - Start Sailing Stage 3The RYA Youth Sailing Scheme - Start Sailing Stage 3 focuses on refining skills and building self-reliance on the water. Young sailors learn how... More Details
- Courses, RYA Youth Sailing Scheme - Start Sailing Stage 4The RYA Youth Sailing Scheme - Start Sailing Stage 4 is the culmination of the youth sailing program, focusing on advanced boat handling and... More Details
- Courses, RYA Youth Windsurfing Stage 1The RYA Youth Windsurfing Stage 1 course introduces children aged 8–12 to the basics of windsurfing in a safe and engaging environment.... More Details
- Courses, RYA Youth Windsurfing Stage 2Building on the basics, the RYA Youth Windsurfing Stage 2 course focuses on developing greater control and confidence. Young participants learn... More Details
- Courses, RYA Youth Windsurfing Stage 3The RYA Youth Windsurfing Stage 3 course takes young windsurfers to the next level by introducing more advanced techniques. Participants practice... More Details
- Courses, RYA Youth Windsurfing Stage 4The RYA Youth Windsurfing Stage 4 course is the final stage of the youth windsurfing progression. It focuses on high-performance techniques,... More Details
- Flag / Pennant, Signals & Communication Code Flag Zulu (Z)

The International Maritime Signal Flag Zulu.
Meaning
I require a tug.
More Details
By fishing vessels near fishing grounds: I am shooting nets.
If... - Flag Semaphore, Signals & Communication Letter Z (Flag Semaphore)

Flag semaphore indicating the letter Z.
- Morse Code, Signals & Communication Letter Z (Morse Code)
International Morse Code sequence representing the letter Z.
- Phonetic Alphabet, Signals & Communication Zulu
Pronounced: ZOO-loo
The term for the letter Z in the NATO Phonetic Alphabet.

