sovereign immunity vs exemption

sovereign immunity and exemption both are nouns.

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

As nouns, exemption is a hypernym of sovereign immunity; that is, exemption 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
exemption: an act exempting someone

Other hypernyms of sovereign immunity include granting immunity, immunity.

sovereign immunity (noun)	exemption (noun)
an exemption that precludes bringing a suit against the sovereign government without the government's consent	an act exempting someone
	a deduction allowed to a taxpayer because of his status (having certain dependents or being blind or being over 65 etc.)
	immunity from an obligation or duty