factory vs industrial plant

factory and industrial plant both are nouns.

Word	Noun	Adjective	Verb	Adverb
factory	Yes	No	No	No
industrial plant	Yes	No	No	No

As nouns, industrial plant is a hypernym of factory; that is, industrial plant is a word with a broader meaning than factory:

factory: a plant consisting of one or more buildings with facilities for manufacturing
industrial plant: buildings for carrying on industrial labor

Other hypernyms of factory include plant, works.

factory (noun)	industrial plant (noun)
a plant consisting of one or more buildings with facilities for manufacturing	buildings for carrying on industrial labor