natural immunity vs immunity

natural immunity and immunity both are nouns.

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

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

natural immunity: immunity to disease that occurs as part of an individual's natural biologic makeup
immunity: (medicine) the condition in which an organism can resist disease

Other hypernyms of natural immunity include resistance.

natural immunity (noun)	immunity (noun)
immunity to disease that occurs as part of an individual's natural biologic makeup	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