patron vs sponsor

patron and sponsor both are nouns.

Word	Noun	Adjective	Verb	Adverb
patron	Yes	No	No	No
sponsor	Yes	No	Yes	No

As nouns, patron and sponsor are synonyms defined as:

Other synonyms of patron include supporter.

patron (noun)	sponsor (noun)
a regular customer	someone who supports or champions something
someone who supports or champions something	an advocate who presents a person (as for an award or a degree or an introduction etc.)
the proprietor of an inn

patron (verb)	sponsor (verb)
	assume sponsorship of
	assume responsibility for or leadership of
	do one's shopping at; do business with; be a customer or client of