teller vs raconteur

teller and raconteur both are nouns.

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

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

Other hyponyms of teller include anecdotist, fabulist, griot.

teller (noun)	raconteur (noun)
an employee of a bank who receives and pays out money	a person skilled in telling anecdotes
an official appointed to count the votes (especially in legislative assembly)
someone who tells a story