tobacconist vs shopkeeper

tobacconist and shopkeeper both are nouns.

Word	Noun	Adjective	Verb	Adverb
tobacconist	Yes	No	No	No
shopkeeper	Yes	No	No	No

As nouns, shopkeeper is a hypernym of tobacconist; that is, shopkeeper is a word with a broader meaning than tobacconist:

Other hypernyms of tobacconist include market keeper, storekeeper, tradesman.

tobacconist (noun)	shopkeeper (noun)
a shop that sells pipes and pipe tobacco and cigars and cigarettes	a merchant who owns or manages a shop
a retail dealer in tobacco and tobacco-related articles