dominion vs sovereignty

dominion and sovereignty both are nouns.

Word	Noun	Adjective	Verb	Adverb
dominion	Yes	No	No	No
sovereignty	Yes	No	No	No

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

Other hyponyms of dominion include paramountcy, raj, reign, suzerainty.

dominion (noun)	sovereignty (noun)
a region marked off for administrative or other purposes	the authority of a state to govern another state
dominance or power through legal authority	government free from external control
	royal authority; the dominion of a monarch