tract housing vs housing

tract housing and housing both are nouns.

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

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

tract housing: housing consisting of similar houses constructed together on a tract of land
housing: structures collectively in which people are housed

Other hypernyms of tract housing include living accommodations, lodging.

tract housing (noun)	housing (noun)
housing consisting of similar houses constructed together on a tract of land	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