minivan vs auto

minivan and auto both are nouns.

Word	Noun	Adjective	Verb	Adverb
minivan	Yes	No	No	No
auto	Yes	No	No	No

As nouns, auto is a hypernym of minivan; that is, auto is a word with a broader meaning than minivan:

minivan: a small box-shaped passenger van; usually has removable seats; used as a family car
auto: a motor vehicle with four wheels; usually propelled by an internal combustion engine

Other hypernyms of minivan include automobile, car, machine, motorcar, passenger van.

minivan (noun)	auto (noun)
a small box-shaped passenger van; usually has removable seats; used as a family car	a motor vehicle with four wheels; usually propelled by an internal combustion engine