crankcase vs housing

crankcase and housing both are nouns.

Word	Noun	Adjective	Verb	Adverb
crankcase	Yes	No	No	No
housing	Yes	No	No	No

As nouns, housing is a hypernym of crankcase; that is, housing is a word with a broader meaning than crankcase:

crankcase: housing for a crankshaft
housing: a protective cover designed to contain or support a mechanical component

crankcase (noun)	housing (noun)
housing for a crankshaft	structures collectively in which people are housed
	a protective cover designed to contain or support a mechanical component
	stable gear consisting of a decorated covering for a horse, especially (formerly) for a warhorse