minivan vs passenger van

minivan and passenger van both are nouns.

Word	Noun	Adjective	Verb	Adverb
minivan	Yes	No	No	No
passenger van	Yes	No	No	No

As nouns, passenger van is a hypernym of minivan; that is, passenger van 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
passenger van: a van that carries passengers

Other hypernyms of minivan include auto, automobile, car, machine, motorcar.

minivan (noun)	passenger van (noun)
a small box-shaped passenger van; usually has removable seats; used as a family car	a van that carries passengers