nepotism vs discrimination

nepotism and discrimination both are nouns.

Word	Noun	Adjective	Verb	Adverb
nepotism	Yes	No	No	No
discrimination	Yes	No	No	No

As nouns, discrimination is a hypernym of nepotism; that is, discrimination is a word with a broader meaning than nepotism:

nepotism: favoritism shown to relatives or close friends by those in power (as by giving them jobs)
discrimination: unfair treatment of a person or group on the basis of prejudice

Other hypernyms of nepotism include favoritism, favouritism.

nepotism (noun)	discrimination (noun)
favoritism shown to relatives or close friends by those in power (as by giving them jobs)	unfair treatment of a person or group on the basis of prejudice
	the cognitive process whereby two or more stimuli are distinguished