bumper vs automobile

bumper and automobile both are nouns.

Word	Noun	Adjective	Verb	Adverb
bumper	Yes	No	No	No
automobile	Yes	No	Yes	No

bumper (noun)	automobile (noun)
a mechanical device consisting of bars at either end of a vehicle to absorb shock and prevent serious damage	a motor vehicle with four wheels; usually propelled by an internal combustion engine
a glass filled to the brim (especially as a toast)

bumper (verb)	automobile (verb)
	travel in an automobile