chemist's shop vs pharmacy

chemist's shop and pharmacy both are nouns.

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

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

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

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

chemist's shop (noun)	pharmacy (noun)
a retail shop where medicine and other articles are sold	a retail shop where medicine and other articles are sold
	the art and science of preparing and dispensing drugs and medicines