shop at vs sponsor

shop at is not a noun while sponsor is a noun.

Word	Noun	Adjective	Verb	Adverb
shop at	No	No	Yes	No
sponsor	Yes	No	Yes	No

As verbs, shop at and sponsor are synonyms defined as:

shop at and sponsor: do one's shopping at; do business with; be a customer or client of

Other synonyms of shop at include buy at, frequent, patronise, patronize, shop.

shop at (noun)	sponsor (noun)
	someone who supports or champions something
	an advocate who presents a person (as for an award or a degree or an introduction etc.)

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