aversion vs shunning

aversion and shunning both are nouns.

Word	Noun	Adjective	Verb	Adverb
aversion	Yes	No	No	No
shunning	Yes	No	No	No

As nouns, shunning is a hypernym of aversion; that is, shunning is a word with a broader meaning than aversion:

aversion: the act of turning yourself (or your gaze) away
shunning: deliberately avoiding; keeping away from or preventing from happening

Other hypernyms of aversion include avoidance, dodging, turning away.

aversion (noun)	shunning (noun)
the act of turning yourself (or your gaze) away	deliberately avoiding; keeping away from or preventing from happening
a feeling of intense dislike