snowplow vs automotive vehicle

snowplow and automotive vehicle both are nouns.

Word	Noun	Adjective	Verb	Adverb
snowplow	Yes	No	No	No
automotive vehicle	Yes	No	No	No

As nouns, automotive vehicle is a hypernym of snowplow; that is, automotive vehicle is a word with a broader meaning than snowplow:

snowplow: a vehicle used to push snow from roads
automotive vehicle: a self-propelled wheeled vehicle that does not run on rails

Other hypernyms of snowplow include motor vehicle.

snowplow (noun)	automotive vehicle (noun)
a vehicle used to push snow from roads	a self-propelled wheeled vehicle that does not run on rails