business vs patronage

business and patronage both are nouns.

Word	Noun	Adjective	Verb	Adverb
business	Yes	No	No	No
patronage	Yes	No	Yes	No

As nouns, patronage is a hyponym of business; that is, patronage is a word with a more specific, narrower meaning than business:

business: the volume of commercial activity
patronage: the business given to a commercial establishment by its customers

Other hyponyms of business include trade, land-office business.

As nouns, business and patronage are synonyms defined as:

Other synonyms of business include clientele.

business (noun)	patronage (noun)
the principal activity in your life that you do to earn money	the act of providing approval and support
the activity of providing goods and services involving financial and commercial and industrial aspects	(politics) granting favors or giving contracts or making appointments to office in return for political support
the volume of commercial activity	the business given to a commercial establishment by its customers
incidental activity performed by an actor for dramatic effect	a communication that indicates lack of respect by patronizing the recipient
an immediate objective	customers collectively
a rightful concern or responsibility
a commercial or industrial enterprise and the people who constitute it
customers collectively
business concerns collectively

business (verb)	patronage (verb)
	be a regular customer or client of
	support by being a patron of