tunnel vs motorcar

tunnel and motorcar both are nouns.

Word	Noun	Adjective	Verb	Adverb
tunnel	Yes	No	Yes	No
motorcar	Yes	No	No	No

tunnel (noun)	motorcar (noun)
a passageway through or under something, usually underground (especially one for trains or cars)	a motor vehicle with four wheels; usually propelled by an internal combustion engine
a hole made by an animal, usually for shelter

tunnel (verb)	motorcar (verb)
force a way through
move through by or as by digging