Vehicle n. : That in or on which any person or thing is, or may be, carried, as a coach, carriage, wagon, cart, car, sleigh, bicycle, etc.; a means of conveyance; specifically, a means of conveyance upon land.

Vehicle n. : That which is used as the instrument of conveyance or communication; as, matter is the vehicle of energy.

Vehicle n. : A substance in which medicine is taken.

Vehicle n. : Any liquid with which a pigment is applied, including whatever gum, wax, or glutinous or adhesive substance is combined with it.

Example:
What makes a Vehicle jerk while driving up hill?

Taxonomy
Vehicle, carriage, type-approval, water vehicles, means of transport, Human-powered vehicles, Council Directive, motor vehicles, vehicle type, free encyclopedia, EC, steam tricycle, motorcycle, trailers, Bicycle, Automobile, humans, draft animals.

Defination from the web:
vehicle (Latin: vehiculum) is a means of conveyance, a carriage or transport. ... A rickshaw is a vehicle that may carry a human and be powered by a human, but it is the mechanical form or cart that is powered by the human that ...