the.com/vehicle

Anything that carries something else forward, your car, your argument, or your excuse.

means A thing used to carry or transport people, goods, or ideas from one place (or state) to another.

from From Latin vehiculum, 'a means of carrying,' built on the verb vehere, 'to carry or convey' — the same root that gives us 'convey' itself, and 'vehement' (to be carried away by feeling). The word rolled into English around the 1600s, originally for carts and carriages, before it broadened to cover anything that bears something else along, literally or not.

legal definition
many laws count bicycles and even horses as vehicles
figurative use
ideas, songs, and movies are called vehicles too
oldest wheeled one
dates back roughly 5,500 years, to Mesopotamia
shared root
vehicle and vector both come from carry
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