class feeling vs ill will

class feeling and ill will both are nouns.

Word	Noun	Adjective	Verb	Adverb
class feeling	Yes	No	No	No
ill will	Yes	No	No	No

As nouns, ill will is a hypernym of class feeling; that is, ill will is a word with a broader meaning than class feeling:

class feeling: feelings of envy and resentment of one social or economic class for toward another
ill will: the feeling of a hostile person

Other hypernyms of class feeling include enmity, hostility.

class feeling (noun)	ill will (noun)
feelings of envy and resentment of one social or economic class for toward another	a hostile (very unfriendly) disposition
	the feeling of a hostile person