The difference between Automobile and Truck

Automobile as a noun (US, Canada):

A type of vehicle designed to move on the ground under its own stored power and intended to carry a driver, a small number of additional passengers, and a very limited amount of other load. A car or motorcar.

Automobile as a verb (intransitive, dated):

To travel by automobile.

Automobile as an adjective:

Self-moving; self-propelled.

Truck as a noun:

A small wheel or roller, specifically the wheel of a gun carriage.

Truck as a noun:

The ball on top of a flagpole.

Truck as a noun (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".

Truck as a noun (countable, uncountable, US, Australia):

A semi-tractor ("semi") trailer; a lorry.

Truck as a noun:

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.

Truck as a noun:

A garden cart, a two-wheeled wheelbarrow.

Truck as a noun (obsolete):

A small wagon or cart, of various designs, pushed or pulled by hand or pulled by an animal, as with those in hotels for moving luggage, or in libraries for transporting books.

Truck as a noun:

A pantechnicon (removal van).

Truck as a noun (UK, rail transport):

A flatbed railway car; a flatcar.

Truck as a noun:

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; a bogie.

Truck as a noun:

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.

Truck as a noun (theater):

A platform with wheels or casters.

Truck as a noun:

Dirt or other messiness.

Truck as a verb (intransitive):

To drive a truck: Generally a truck driver's slang.

Truck as a verb (transitive):

To convey by truck.

Truck as a verb (intransitive, US, slang):

To travel or live contentedly.

Truck as a verb (intransitive, US, Canada, slang):

To persist, to endure.

Truck as a verb (intransitive, film production):

To move a camera parallel to the movement of the subject.

Truck as a verb (transitive, slang):

To fight or otherwise physically engage with.

Truck as a verb (transitive, slang):

To run over or through a tackler in American football.

Truck as a verb (intransitive, now, _, chiefly, _, dialectal):

To fail; run out; run short; be unavailable; diminish; abate.

Truck as a verb (intransitive, now, _, chiefly, _, dialectal):

To give in; give way; knuckle under; truckle.

Truck as a verb (intransitive, now, _, chiefly, _, dialectal):

To deceive; cheat; defraud.

Truck as a verb (transitive, UK, _, dialectal, Scotland):

To tread (down); stamp on; trample (down).

Truck as a verb (transitive):

To trade, exchange; barter.

Truck as a verb (intransitive):

To engage in commerce; to barter or deal.

Truck as a verb (intransitive):

To have dealings or social relationships with; to engage with.

Truck as a noun (obsolete, often used in plural sense):

Small, humble items; things, often for sale or barter.

Truck as a noun (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 as a noun (US):

Garden produce, groceries (see truck garden).

Truck as a noun (usually, _, with negative):

Social intercourse; dealings, relationships.

Truck as an adjective:

Pertaining to a garden patch or truck garden.