dynasty vs sept

dynasty and sept both are nouns.

Word	Noun	Adjective	Verb	Adverb
dynasty	Yes	No	No	No
sept	Yes	No	No	No

As nouns, sept is a hypernym of dynasty; that is, sept is a word with a broader meaning than dynasty:

Other hypernyms of dynasty include family, family line, folk, kinfolk, kinsfolk, phratry.

dynasty (noun)	sept (noun)
a sequence of powerful leaders in the same family	people descended from a common ancestor