teller vs fabulist

teller and fabulist both are nouns.

Word	Noun	Adjective	Verb	Adverb
teller	Yes	No	No	No
fabulist	Yes	No	No	No

As nouns, fabulist is a hyponym of teller; that is, fabulist is a word with a more specific, narrower meaning than teller:

Other hyponyms of teller include anecdotist, raconteur, griot.

teller (noun)	fabulist (noun)
an employee of a bank who receives and pays out money	a person who tells or invents fables
an official appointed to count the votes (especially in legislative assembly)
someone who tells a story