non-discrimination vs equity

non-discrimination and equity both are nouns.

Word	Noun	Adjective	Verb	Adverb
non-discrimination	Yes	No	No	No
equity	Yes	No	No	No

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

Other hypernyms of non-discrimination include fairness.

non-discrimination (noun)	equity (noun)
fairness in treating people without prejudice	conformity with rules or standards
	the ownership interest of shareholders in a corporation
	the difference between the market value of a property and the claims held against it