manufacture vs invent

manufacture is a noun but invent is not a noun.

Word	Noun	Adjective	Verb	Adverb
manufacture	Yes	No	Yes	No
invent	No	No	Yes	No

As verbs, manufacture and invent are synonyms defined as:

Other synonyms of manufacture include cook up, fabricate, make up.

manufacture (noun)	invent (noun)
the organized action of making of goods and services for sale
the act of making something (a product) from raw materials

manufacture (verb)	invent (verb)
put together out of artificial or natural components or parts	come up with (an idea, plan, explanation, theory, or principle) after a mental effort
concoct something artificial or untrue	concoct something artificial or untrue
create or produce in a mechanical way
produce naturally