dictator vs despot

dictator and despot both are nouns.

Word	Noun	Adjective	Verb	Adverb
dictator	Yes	No	No	No
despot	Yes	No	No	No

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

Other hyponyms of dictator include shogun, strongman, autocrat, tyrant.

dictator (noun)	despot (noun)
a ruler who is unconstrained by law	a cruel and oppressive dictator
a person who behaves in a tyrannical manner
a speaker who dictates to a secretary or a recording machine