roll of tobacco vs baccy

roll of tobacco and baccy both are nouns.

Word	Noun	Adjective	Verb	Adverb
roll of tobacco	Yes	No	No	No
baccy	Yes	No	No	No

As nouns, baccy is a hypernym of roll of tobacco; that is, baccy is a word with a broader meaning than roll of tobacco:

roll of tobacco: tobacco leaves that have been made into a cylinder
baccy: leaves of the tobacco plant dried and prepared for smoking or ingestion

Other hypernyms of roll of tobacco include tobacco.

roll of tobacco (noun)	baccy (noun)
tobacco leaves that have been made into a cylinder	leaves of the tobacco plant dried and prepared for smoking or ingestion