HAIL - To attempt to contact another boat or shore, either by voice or radio

HALF HITCH – The simplest knot, usually part of another knot

HALF MAST – The position of a flag when hoisted half way

HALF SEAS OVER - Just short of being drunk

HALYARDS - Lines used to haul up the sail and the wooden poles (boom and gaff) that hold the sails in place.

HANGING KNEES - Vertical wooden brackets shaped somewhat like human knees; used to support deck beams.

HANKS - Metal hooks used to secure a sail to a stay; to hank on a sail is to hook it on a stay using the hanks

HARBOUR - A safe anchorage, protected from most storms; may be natural or man-made, with breakwaters and jetties; a place for docking and loading

HARD ALEE - The command given to inform the crew that the helm is being turned quickly to leeward, turning the boat windward

HARD CHINE - An abrupt intersection between the hull side and the hull bottom of a boat so constructed.

HARD OVER - turning the wheel as far as possible

HARDEN UP - to steer closer to the wind, usually by pulling in on the sheets

HATCH - An opening in a boat's deck fitted with a watertight cover

HAUL AROUND - change from a run to a reach

HAWSE HOLE - A hole in the hull for mooring lines to run through.

HAWSEPIPES - Pipes made of heavy cast iron or steel through which the anchor chain runs; placed in the ship's bow on each side of the stem, or in some cases also at the stern when a stern anchor is used.

HAWSER - A rope that is very large in diameter, usually used when docking large vessels.

HAZARD  - 1. Any boat over 2 feet in length. 2. The skipper of any such craft. 3. Any body of water. 4. Any body of land within 100 yards of any body of water. 5. Any Personal WaterCraft (PWC)

HEAD - A marine toilet. The upper corner of a triangular sail.  Square-rigged ships sailed down wind (that means the wind blew from the stern to the bow), that was the nature of the beast. With no indoor plumbing sailors would do their thing over the side. No experienced sailor would “go” into the wind, so he would go to the head (front) of the ship to take care of his needs.

HEADER - A change in wind direction which lets the boat head down.

HEAD TO WIND - The bow turned into the wind, sails luffing.

HEADING - The direction in which a vessel's bow points at any given time.

HEADS UP - Watch out

HEADSAILS - Any sail forward of the foremast.

HEADSTAY - a wire support line from the mast to the bow

HEAD SEAS - Waves coming from the front of the vessel.

HEADWAY - The forward motion of a boat. Opposite of sternway

HEAVE – To throw

HEAVE SHORT – To heave in until the vessel is riding nearly over her anchor

HEAVE TAUT – To haul in until the line has a strain upon it

HEAVE TO -To bring a vessel up in a position where it will maintain little or no headway, usually with the bow into the wind or nearly so.

HEEL - To lean to one side.

HELM - The wheel or tiller controlling the rudder. HELMSPERSON - The person who steers the boat.

HELMSMAN - the member of the crew responsible for steering

HIGH-PRESSURE HAT - An officer's cap

HIKE - leaning out over the side of the boat to balance it

HITCH - A knot used to secure a rope to another object or to another rope, or to form a loop or a noose in a rope.

HOGGED - A vessel whose bow and stern have dropped

HOIST - To raise aloft

HOLD - A compartment below deck in a large vessel, used solely for carrying cargo.

Horn Cleat - Horn shaped cleat.

HORN TIMBER - A heavy longitudinal timber that angles upward from the stern to support the underside of the fantail

HORSEPOWER - A unit of power equal in the United States to 746 watts; nearly equivalent to the English gravitational unit of the same name that equals 550 foot-pounds of work per second.

HORSE MARINE - Unhandy seaman.

HORSE/TRAVELER -Metal or rope traveler to sheet a sail

HOT BUNK - A bunk used successively by more than one sailor

HOUR CIRCLE – Imaginary great semi-circles each at right-angles to the celestial equator joining the celestial poles

HOVE TO - Lying nearly head to wind and stopped, and maintaining this position by trimming sail or working engines.

HULL - The main body of a vessel.

HULL DOWN - Said of a distant ship when her hull is below horizon and her masts and upper works are visible.

HULL SPEED – The maximum speed at which a displacement hull can be driven

HULLING -Floating, but at mercy of wind and sea. 2. Piercing the hull with a projectile. 3. Taking in sail during a calm.

HURRICANE - A strong tropical revolving storm of force 12(65 mph) or higher in the northern hemisphere. Hurricanes revolve in a clockwise direction.

HYDRAULIC CURRENT – A flow which occurs when water flows from a higher level to a lower level as in a river or in certain passes

HYPOTHERMIA - The loss of body heat -- is the greatest danger for anyone in the water. As the body loses its heat, body functions slow down. This can quickly lead to death