griot vs teller

griot and teller both are nouns.

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

As nouns, teller is a hypernym of griot; that is, teller is a word with a broader meaning than griot:

griot: a storyteller in West Africa; perpetuates the oral traditions of a family or village
teller: someone who tells a story

Other hypernyms of griot include narrator, storyteller.

griot (noun)	teller (noun)
a storyteller in West Africa; perpetuates the oral traditions of a family or village	an employee of a bank who receives and pays out money
	an official appointed to count the votes (especially in legislative assembly)
	someone who tells a story