tobacconist vs tobacconist shop

tobacconist and tobacconist shop both are nouns.

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

As nouns, tobacconist and tobacconist shop are synonyms defined as:

tobacconist and tobacconist shop: a shop that sells pipes and pipe tobacco and cigars and cigarettes

Other synonyms of tobacconist include tobacco shop.

tobacconist (noun)	tobacconist shop (noun)
a shop that sells pipes and pipe tobacco and cigars and cigarettes	a shop that sells pipes and pipe tobacco and cigars and cigarettes
a retail dealer in tobacco and tobacco-related articles