chemist's shop vs chemist's

chemist's shop and chemist's both are nouns.

Word	Noun	Adjective	Verb	Adverb
chemist's shop	Yes	No	No	No
chemist's	Yes	No	No	No

As nouns, chemist's shop and chemist's are synonyms defined as:

chemist's shop and chemist's: a retail shop where medicine and other articles are sold

Other synonyms of chemist's shop include apothecary's shop, drugstore, pharmacy.

chemist's shop (noun)	chemist's (noun)
a retail shop where medicine and other articles are sold	a retail shop where medicine and other articles are sold