floorboard vs motorcar

floorboard and motorcar both are nouns.

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

floorboard (noun)	motorcar (noun)
a board in the floor	a motor vehicle with four wheels; usually propelled by an internal combustion engine
the floor of an automobile