sovereignty vs authorisation

sovereignty and authorisation both are nouns.

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

As nouns, authorisation is a hypernym of sovereignty; that is, authorisation is a word with a broader meaning than sovereignty:

Other hypernyms of sovereignty include authority, authorization, dominance, potency, say-so.

sovereignty (noun)	authorisation (noun)
the authority of a state to govern another state	the act of conferring legality or sanction or formal warrant
government free from external control	the power or right to give orders or make decisions
royal authority; the dominion of a monarch	official permission or approval
	a document giving an official instruction or command