dominion vs territory

dominion and territory both are nouns.

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

As nouns, dominion and territory are synonyms defined as:

dominion and territory: a region marked off for administrative or other purposes

Other synonyms of dominion include district, territorial dominion.

dominion (noun)	territory (noun)
a region marked off for administrative or other purposes	an area of knowledge or interest
dominance or power through legal authority	a region marked off for administrative or other purposes
	the geographical area under the jurisdiction of a sovereign state