housing industry vs industry

housing industry and industry both are nouns.

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

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

housing industry: an industry that builds housing
industry: the people or companies engaged in a particular kind of commercial enterprise

housing industry (noun)	industry (noun)
an industry that builds housing	the organized action of making of goods and services for sale
	persevering determination to perform a task
	the people or companies engaged in a particular kind of commercial enterprise