prefabrication vs manufacturing

prefabrication and manufacturing both are nouns.

Word	Noun	Adjective	Verb	Adverb
prefabrication	Yes	No	No	No
manufacturing	Yes	No	No	No

As nouns, manufacturing is a hypernym of prefabrication; that is, manufacturing is a word with a broader meaning than prefabrication:

prefabrication: the manufacture of sections of a building at the factory so they can be easily and rapidly assembled at the building site
manufacturing: the act of making something (a product) from raw materials

Other hypernyms of prefabrication include fabrication, manufacture.

prefabrication (noun)	manufacturing (noun)
the manufacture of sections of a building at the factory so they can be easily and rapidly assembled at the building site	the act of making something (a product) from raw materials