(nautical) On a wooden mast, a circular disc (or sometimes a rectangle) of wood near or at the top of the mast, usually with holes or sheaves to reeve signal halyards; also a temporary or emergency place for a lookout. "Main" refers to the mainmast, whereas a truck on another mast may be called (on the mizzenmast, for example) "mizzen-truck".
(countable, uncountable, US, Australia) A semi-tractor ("semi") trailer; (Britain) a lorry.
Any motor vehicle designed for carrying cargo, including delivery vans, pickups, and other motorized vehicles (including passenger autos) fitted with a bed designed to carry goods.
A small wagon or cart, of various designs, pushed or pulled by hand or (obsolete) pulled by an animal, as with those in hotels for moving luggage, or in libraries for transporting books.
A pivoting frame, one attached to the bottom of the bed of a railway car at each end, that rests on the axle and which swivels to allow the axle (at each end of which is a solid wheel) to turn with curves in the track. The axle on many types of railway car is not attached to the truck and relies on gravity to remain within the truck's brackets (on the truck's base) that hold the axle in place
The part of a skateboard or roller skate that joins the wheels to the deck, consisting of a hanger, baseplate, kingpin, and bushings, and sometimes mounted with a riser in between.
(intransitive) To engage in commerce; to barter or deal.
(intransitive) To have dealings or social relationships with; to engage with.
Noun
(obsolete, often used in plural sense) Small, humble items; things, often for sale or barter.
(historical) The practice of paying workers in kind, or with tokens only exchangeable at a shop owned by the employer [forbidden in the 19th century by the Truck Acts]
(US) Garden produce, groceries (see truck garden).
(usually with negative) Social intercourse; dealings, relationships.
