sovereign immunity vs immunity

sovereign immunity and immunity both are nouns.

Word	Noun	Adjective	Verb	Adverb
sovereign immunity	Yes	No	No	No
immunity	Yes	No	No	No

As nouns, immunity is a hypernym of sovereign immunity; that is, immunity is a word with a broader meaning than sovereign immunity:

sovereign immunity: an exemption that precludes bringing a suit against the sovereign government without the government's consent
immunity: an act exempting someone

Other hypernyms of sovereign immunity include exemption, granting immunity.

sovereign immunity (noun)	immunity (noun)
an exemption that precludes bringing a suit against the sovereign government without the government's consent	an act exempting someone
	the quality of being unaffected by something
	the state of not being susceptible
	(medicine) the condition in which an organism can resist disease