Plantagenet line vs dynasty

Plantagenet line and dynasty both are nouns.

Word	Noun	Adjective	Verb	Adverb
Plantagenet line	Yes	No	No	No
dynasty	Yes	No	No	No

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

Plantagenet line: the family name of a line of English kings that reigned from 1154 to 1485
dynasty: a sequence of powerful leaders in the same family

Other hypernyms of Plantagenet line include royal family, royal house, royal line, royalty.

Plantagenet line (noun)	dynasty (noun)
the family name of a line of English kings that reigned from 1154 to 1485	a sequence of powerful leaders in the same family