chemist's vs pharmacy

chemist's and pharmacy both are nouns.

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

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

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

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

chemist's (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