food shop vs shop

food shop and shop both are nouns.

Word	Noun	Adjective	Verb	Adverb
food shop	Yes	No	No	No
shop	Yes	No	Yes	No

As nouns, shop is a hypernym of food shop; that is, shop is a word with a broader meaning than food shop:

Other hypernyms of food shop include store.

food shop (noun)	shop (noun)
a shop selling ready-to-eat food products	a course of instruction in a trade (as carpentry or electricity)
	a mercantile establishment for the retail sale of goods or services
	small workplace where handcrafts or manufacturing are done

food shop (verb)	shop (verb)
	give away information about somebody
	do one's shopping
	shop around; not necessarily buying
	do one's shopping at; do business with; be a customer or client of