narrator vs griot

narrator and griot both are nouns.

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

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

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

Other hyponyms of narrator include anecdotist, raconteur, fabulist.

narrator (noun)	griot (noun)
someone who tells a story	a storyteller in West Africa; perpetuates the oral traditions of a family or village