despot vs dictator

despot and dictator both are nouns.

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

As nouns, dictator is a hypernym of despot; that is, dictator is a word with a broader meaning than despot:

Other hypernyms of despot include potentate.

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