filler vs baccy

filler and baccy both are nouns.

Word	Noun	Adjective	Verb	Adverb
filler	Yes	No	No	No
baccy	Yes	No	No	No

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

filler: the tobacco used to form the core of a cigar
baccy: leaves of the tobacco plant dried and prepared for smoking or ingestion

Other hypernyms of filler include tobacco.

filler (noun)	baccy (noun)
the tobacco used to form the core of a cigar	leaves of the tobacco plant dried and prepared for smoking or ingestion
anything added to fill out a whole
copy to fill space between more important articles in the layout of a magazine or newspaper
100 filler equal 1 forint in Hungary
used for filling cracks or holes in a surface