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T	true course
T	search time available
T.E.U.	Twenty Foot Equivalent Unit (containers): A measurement of cargo-carrying capacity on a containership, referring to a common container size of 20 ft in length.
Tabernacle	A hinged support for the bottom of a mast so that the mast can be lowered easily when passing under bridges.
Tack	A common sticky substance left in the cockpit and on deck by other people's kids, usually in the form of foot- or hand-prints. (See Jibe for removal technique.)
Tack	the front, lower corner of the sail, also course with the wind coming from the side of the boat, also to change course by turning into the wind so that the wind comes from the other side of the boat
tack	1) The lower forward corner of a triangular sail.2) The direction that a boat is sailing with respect to the wind.3) To change a boat's direction, bringing the bow through the eye of the wind.
Tack:	The front, lower corner of the sail, also course with the wind coming from the side of the boat, also to change course by turning into the wind so that the wind comes from the other side of the boat.
Tacking	1) To change a boat's direction, bringing the bow through the eye of the wind.2) To tack repeatedly, as when trying to sail to a point upwind of the boat.
Tacking:	This is the name given to the zig-zag course which is steered in order to make progress against the wind.
Tackle	Lines used with blocks in order move heavy objects.
Tackle	A purchase system using ropes and blocks
Taffrail	Rail on the spar deck around the stern.
Tail	1) The end of a line.2) A line attached to the end of a wire to make it easier to use.3) To gather the unused end of a line neatly so that it does not become tangled.
TAIL SHAFT	The extreme section at the aft end of a ship's propeller shaft.
take in	1) To remove a sail.2) To add a reef to a sail.
Tallow dip	Candle that burns grease.
Tally Board:	Board, bearing instructions, that comes to a wrecked ship with a life-saving rocket line.
Tally Book:	Book in which is kept a reckoning of items of cargo received or discharged from a hatch or vessel.
Tallyman	A person who records the number of cargo items together with the condition thereof at the time it is loaded into or discharged from a vessel.
Tang	A metal fitting That the stays attached to the mast
TANK CLEANING	Removal of all traces of a cargo from the tanks of a tanker normally by means of high pressure water jets.
Tank Container	A tank, surrounded by a framework with the overall dimensions of a container for the transport of liquids or gasses in bulk.
tank top	The top of a Great Lakes bulk carrier's bilge tank; a water ballast tank forming the bottom of a freighter's hull.
TANK-BARGE	A river barge designed for the carriage of liquid bulk cargoes.
Tanker	A vessel designed for the carriage of liquid cargo in bulk.
TANKER	A tanker is a bulk carrier designed to transport liquid cargo, most often petroleum products. Oil tankers vary in size from small coastal vessels of 1,500 tons deadweight, through medium-sized ship of 60,000 tons, to the giant VLCCs (very large crude carr
Tanky	Petty officer in R.N. whose duty is to look after fresh-water tanks. At one time these tanks were under the charge of the navigating officer, who shared the nickname.
taps and dies	Tools for cutting metal threads into parts.
Tare Weight of Container	Mass of an empty container including all fittings and appliances associated with that particular type of container on its normal operating condition.
TARif Intègrè Communautaire (TARIC)	The integrated customs tariff of the community.
Tariff	The schedule of rates, charges and related transport conditions.
Tarpaulin	Waterproof material, e.g. canvas, to spread over cargo to protect it from getting wet.
TAS	true air speed
Teem:	To pour. To empty.
Tell Tales	Small lengths of wool sewn on the sail
Telltale	A small line free to flow in the direction of the breeze. It is attached to sails, stays in the slot, and in other areas, enabling the helmsman and crew to see how the wind is flowing.
Tender	A small boat used to ferry passengers between a larger vessel and the shore
Tender	(1) One who serves as a precautionary standby, as the line tender for a diver; (2) An auxiliary vessel that acts as a support ship for other ships, such as a destroyer tender.
Tenth Wave:	Commonly believed to be higher than preceding nine waves. Although it is true that wind effect causes one wave to override another, and so make a larger wave, it is not established that the eleventh wave will do this; so making a larger tenth wave. In some places the fifth wave is consistently larger.
Terminal	A location on either end of a transportation line including servicing and handling facilities. (P&O Nedlloyd synonym of container terminal).
Terms of Delivery	All the conditions agreed upon between trading partners regarding the delivery of goods and the related services.
Terms of Freight	All the conditions agreed upon between a carrier and a merchant about the type of freight and charges due to the carrier and whether these are prepaid or are to be collected.
TERRITORIAL WATERS	That portion of the sea up to a limited instance which is immediately adjacent to the shores of any country and over which the sovereignty and exclusive jurisdiction of that country extend.
TEU	twenty foot equivalent unit (containers)
TF	tropical fresh load line
The bowline	a knot used to form a temporary loop in the end of a line
The Cheshire Locks:	The locks between Wheelock & Harding's Wood. Also know as Heartbreak Hill.
The Crow:	The name given to the locks at Oldbury.
The Ganzies:	The term used for the Rushall lock Flight due to the windy location.
The Heads:	Traditionally sailors used the front or 'Head' of the boat for a lavatory. Also the front was were the figurehead was located.
The Old Thirteen:	The name given to the Farmers Bridge flight in Birmingham.
The Twenty-one:	The canal term for the Wolverhampton lock flight.
Thermal Container	A container built with insulating walls, doors, floor and roof by which heat exchange with the environment is minimised thus limiting temperature variations of the cargo.
Thimble	A metal loop around to form a hard eye
THIRD ASSISTANT ENGINEER	In charge of eight to twelve watch. Maintains lighting fixtures. Repairs malfunctioning accessories in living quarters. Assist other engineers as directed.
THIRD MATE	In charge of eight to twelve watch. Makes sure emergency survival equipment (lifeboats, life rings, etc.) are in order. Assists other officers as directed.
Third Party Logistics	Supply of logistics related operations between traders by an independent organisation.
Thole, Thole Pin:	Metal or wooden peg inserted in gunwale of a boat for oar to heave against when rowing without crutch or rowlock.
Three Sheets in the Wind:	Said of a man under the influence of drink. A ship with three sheets in the wind would "stagger to and fro like a drunken man". Conversely, a drunken man staggers to and fro like a ship with three sheets in the wind.
Through Charge	The total rate from point of departure to point of destination. It may be a joint rate or a combination of rates (air cargo).
Through Route	The total route from point of departure to point of destination.
Thwart	A seat running across dinghy
Thwartships	Also athwartships. Across the width of a boat.
THWARTSHIPS	At right angles to the centerline of the boat.
TI	Transportation Institute, a non-profit organization devoted to maritime research and education.
Ticket:	Colloquial name for a "Certificate of Competency". Generally looked upon as a disparaging name but, etymologically speaking, is perfectly appropriate.
tidal current	Also called tidal stream. The flowing of water caused by the rising and lowering tidal waters.
Tidal lock:	A lock that separates the lower, tidal section of a river from the upper, none tidal reaches.
Tide	The predictable, regular rising and lowering of water in some areas due to the pull of the sun and the moon. Tidal changes can happen approximately every six or 12 hours, depending on the region. To find out the time and water levels of different tides, you can use tide tables for your area. The period of high water level is known as high tide, and the period of low water level is known as low tide.
Tide	Vertical rise of the water
Tideaway	part of a channel were the tide is the strongest
Tier	A horizontal division of a vessel from bottom to top. The numbers run from bottom to deck and from deck upwards and are used as a part of the indication of a stowage place for containers.
Tiller	An arm attached to the top of the rudder to steer a small boat. If the helmsman wants to steer to starboard, he pushes the tiller to port. Larger boats usually use a wheel instead of a tiller.
Tiller	A bar used to control the rudder.
Tilt Transport	Road transport whereby the cargo area is protected against the elements by means of a tilt made of canvas or other pliable material.
Time Charter	A contract whereby a vessel is let to a charterer for a stipulated period of time or voyage, for a remuneration known as hire, generally a monthly rate per ton deadweight or a daily rate.
TIME CHARTER	A form of charter party wherein owner lets or leases his vessel and crew to the charterer for a stipulated period of time. The charterer pays for the bunkers and port charges in addition to the charter hire.
Time Sheet	Statement, drawn-up by the ship's agent at the loading and discharging ports, which details the time worked in loading and discharging the cargo together with the amount of laytime used.
TIR	Transport International des Merchandises par la Route.
TITLE XI	A ship financing guarantee program.
TLL	timber load line
toe rail	A small rail around the deck of a boat. The toe rail may have holes in it to attach lines or blocks. A larger wall in place of the rail is known as a gunwale.
Toe rail	Small rail around the deck of a boat. The toe rail may have holes in it to attach lines or blocks. A larger wall is known as a gunwale.
Tom Cox's Traverse:	Work done by a man who bustles about doing nothing. Usually amplified by adding "running twice round the scuttle butt and once round the longboat".
Ton	1. Unit of weight measurement: 1000 kilograms (metric ton) or 2,240 lbs (long ton).2. Unit of cubic measurement, mainly used to express the cubic capacity of a vessel.3. Unit of weight or measurement used as a basis for the calculation of freights (freigh
TON MILE	A measurement used in the economics of transportation to designate one ton being moved one mile. This is useful to the shipper because it includes the distance to move a commodity in the calculation.
TONNAGE	Deadweight, gross, net, displacement.
TONNAGE	A quantity of cargo normally expressed as a number of tons.
Tonnage	1. Cubic capacity of a merchant vessel.2. Total weight or amount of cargo expressed in tons.
top heavy	A boat that has too much weight up high. This can adversely affect the boat's stability.
Topgallant	1) Situated above the topmast and below the royal mast on a sailing vessel.2) Higher than the adjoining parts of a ship: said of a rail, deck, etc.
Topgallants or T'gallants	Third sail from deck. Also T'Gallant Mast, above topmast
topmast	An upper, secondary mast on a sailing vessel, supported by a heavier, lower mast.
TOP-OFF	To fill a ship which is already partly loaded with cargo.
Topping lift	a line that holds up the boom when it is not being used, also the line that controls the height of a spinnaker pole
Topping lift	A tackle or rope used for for supporting the boom
Tops	Platform between the lower mast and topmast. The two mast sections are joined here.
Topsail	1) On a square-rigged vessel, a sail directly above the lowest sail on a mast.2) On a fore-and-aft-rigged vessel, the next sail above the gaff of a fore-and-aft sail.
topsail schooner	A fore-and-aft-rigged schooner carrying a square topsail and a topgallant sail on the foretopmast.
Topside	Above the deck.
Topsides	The sides of the hull above the waterline and below the deck.
TOPSIDES	The sides of a vessel between the waterline and the deck; sometimes referring to onto or above the deck.
Tops'l	Topsails... second sail from the deck.
Touch and Go:	To touch the ground, with the keel, for a minute or so and then proceed again.
Touchholes	Holes in gun where spark or flame can reach powder to fire the gun.
TOW	When one or more vessels are being towed; when a tug is towing one or more floating objects; to pull an object in the water by means of a rope.
Tow	To pull a boat with another boat, such as a tugboat towing a barge.
TOWAGE	Charges for the services of tugs assisting a ship or other vessels in ports or other locations; the act of towing a ship or other objects from one place to another.
towing light	Running lights that should be used by boats when towing to indicate that a tow is in progress.
Towpath:	This is the path built along side a waterway for the towing-horses and in some cases Bow hauliers to walk along.
TPI	tonnes per inch immersion
TQM	total quality management
Tracing	The action of retrieving information concerning the whereabouts of cargo, cargo items, consignments or equipment.
Track	Prospective course for boat to follow
Track & Trace	The pro-active tracking of the product along the supply chain, and the paper information flow relating to the order.
Track spacing	The distance between adjacent parallel search tracks
Tracking	The function of maintaining status information, including current location, of cargo, cargo items, consignments or containers either full or empty.
Traction	The power to grip or hold to a surface while moving without slipping.
Tractor	A powered vehicle designed and used for towing other vehicles.
trade wind	Winds in certain areas known for their consistent strength and direction. Trade winds are named because of their reliability, allowing for planned voyages along the routes favored by those winds.
Traffic	The number of passengers, quantity of cargo etc. carried over a certain route.
Trailer	A vehicle without motive power, designed for the carriage of cargo and to be towed by a motor vehicle.
trailing edge	The aft edge of a sail, more commonly called the leech.
TRAMP SERVICE	Vessels operating without a fixed itinerary or schedule or charter contract.
Tramp Vessel	A vessel not operating under a regular schedule.
Trans Siberian Landbridge	Overland route from Europe to the Far East via the Trans Siberian Railway (TSR).
Transfer Cargo	Cargo arriving at a point by one flight and continuing there-from by another flight (air cargo).
Transhipment	Transfer of cargo from one means of transport to another for on-carriage during the course of one transport operation.
Transit	The time steaming from port to the study site and vice versa.
Transit	Also called a range. Two navigational aids separated in distance so that they can be aligned to determine that a boat lies on a certain line. Transits can be used to determine a boat's position or to guide it through a channel.
Transit Cargo	1. Cargo between outwards customs clearance and inwards customs clearance.2. Cargo arriving at a point and departing there-from by the same through flight (air cargo).
Transit Country	One of the States signatory to the Convention on Common Transit (currently, the 18 States of the European Union and the European Free Trade Association, plus San Marino).
Translation/validation of certificates
Transom	the back, outer part of the stern
TRANSOM	The stern cross-section of a square sterned boat.
transom	The flat, vertical aft end of a ship.
Transponder	A device (chip) used for identification, which automatically transmits certain coded data when actuated by a special signal from an interrogator.
Transport	The assisted movement of people and or goods.
Transport Document	Document evidencing a contract of carriage between a shipowner and a consignor, such as bill of lading, seawaybill or a multimodal transport document. (IMO)
Transport International by Road	A set of rules following a customs convention to facilitate the international, European transport of goods by road with minimal interference under cover of TIR-carnets.
Transport Unit	A physical unit, e.g. container or ckd uniquely identified (for instance by license plate) that has been provided by the original shipper for transportation and that should not be split during the transportation process. A transport handling unit can cont
Traveler	a device that the mainsheet may be attached to which allows its position to be adjusted
Traveller	A slide which travels on a track
Traveller	A bar with an attached block, allowing more controlled adjustment of sail trim.
Trice: T	o haul up by pulling downwards on a rope that is led through a block or sheave.
Trick:	A spell of duty connected with the navigation of a vessel; more particularly, at the wheel or look-out.
TRIM	Fore and aft balance of a boat.
Trim	To adjust the sheets of a vessel's sail
Trim	1) To haul in on a sheet to adjust the sail trim.2) Sail trim.3) A properly balanced boat that floats evenly on its waterline. Improperly trimmed boats may list or lie with their bow or stern too low in the water.
Trimaran	A boat with a center hull and two smaller outer hulls called amas.
trip line	A line attached to the end of an anchor to help free it from the ground.
triple-expansion steam engine	An engine with three steam cylinders of different diameters. Steam passes from a small-diameter high-pressure cylinder to an intermediate cylinder to a large-diameter low-pressure cylinder. These cylinders power the pistons that drive the engine.
Trolling	Fishing with light baited lines
tropical cyclone	An intense tropical weather system with a well-defined circulation and maximum sustained winds of 74 miles per hour (64 knots or higher in the Southwest Indian Ocean. In other parts of the world, they are known as hurricanes, typhoons and severe tropical cyclones.
Trots:	The name given to mooring buoys when lain in a line.
Truck	Class of automotive vehicles of various sizes and designs for transporting goods.
True wind	The speed and direction of the wind felt by a stationary object
trunk	The tall, narrow, waterproof box that houses a vessel's centerboard and allows it to be retracted into the ship's hull.
Trunk	The stretch between two hubs mutually.
Trusted Third Party (TTP)Services	A trusted party is a party which at least two other parties trust. TTP’s may provide some additional services such as time-stamping, etc.
Trysail	Also called storm trysail. A very strong sail used in stormy weather. It is loose footed, being attached to the mast but not the boom. This helps prevent boarding waves from damaging the sail or the rigging
TS	track line search
TSN	track line search, non-return
TTHWARTSHIPS	At right angles to the centerline of the boat.
TUG	A small vessel designed to tow or push large ships or barges. Tugs have powerful diesel engines and are essential to docks and ports to maneuver large ships into their berths. Pusher tugs are also used to push enormous trains of barges on the rivers and i
tug (Or tugboat.)	A powerful, strongly built boat designed to tow or push other vessels.
Tugboat	A small, powerful boat used to help move barges and ships in confined areas.
Tugmaster	Brand name of tractor unit used in ports to pull trailers. They are equipped with a fifth wheel or a gooseneck type of coupling.
Tuning	the adjustment of the standing rigging, the sails and the hull to balance the boat for optimum performance
Turk's head:	This is the rope-knot on top the rudder-post of a traditional narrow boat.
turn of the bilge	The point where the bottom and the sides of a ship join.
Turn up:	To fasten a rope securely by taking turns around a cleat or bollard. Under Foot: Said of anchor when it is under ship's forefoot, and cable is nearly up and down.
Turn:	Complete encirclement of a cleat, bollard, or pin by a rope.
Turnbuckle	A device used to maintain correct tension on standing rigging
Turnover bridge:	(See Roving bridge)
Turtle	To tip the boat over so that the mast is pointing to the bottom of the lake. (Also not a nice place to be)
Tweendeck	Cargo carrying surface below the main deck dividing a hold horizontally in an upper and a lower compartment.
Twenty Foot Equivalent Unit	Unit of measurement equivalent to one twenty foot P&O Nedlloyd container.
Twenty-Four Pounder	Cannon which fired an iron ball of approximately 24 lbs. The gun itself weighed about 4,000 lbs.
Twistlock	Device which has to be inserted into the corner fittings of a container and is turned or twisted, thus locking the container for the purpose of securing or lifting.
Two Way Pallet	A pallet of which the frame permits the entry of forks of (e.g. a fork lift at two opposite sides).
Type of Cargo	An indication of the sort of cargo to be transported, (e.g. Break Bulk, Containerised, RoRo).
Type of Equipment	The type of material used, e.g. 40 feet container, four way pallet or mafi trailer.
Type of Load Indicator	A general reference or a classification of loads of cargo like 'FCL', 'LCL', 'unpacked' and even ship's convenience container, though this is rarely used nowadays.
Type of Means of Transport	The type of vehicle used in the transport process, e.g. wide-body aircraft, tank truck or passenger vessel.
Type of Movement	Description of the service for movement of containers.
Type of Packing	Description of the packaging material used to wrap, contain and protect goods to be transported.
Type of Transport	The indication whether the carrier or the merchant effects and bears the responsibility for inland transport of cargo in containers i.e. a differentiation between the logistical and legal responsibility.
Type of Vessel	The sort of vessel used in the transport process e.g. Container, RoRo, or Multi Purpose.
Typhoon	An intense tropical weather system with a well-defined circulation and maximum sustained winds of 74 miles per hour (64 knots or higher in the Northwest Pacific Ocean (west of the International Date Line). In other parts of the world, they are known as hurricanes, tropical cyclones and severe tropical cyclones.