ejection vs ostracism

ejection and ostracism both are nouns.

Word	Noun	Adjective	Verb	Adverb
ejection	Yes	No	No	No
ostracism	Yes	No	No	No

As nouns, ostracism is a hyponym of ejection; that is, ostracism is a word with a more specific, narrower meaning than ejection:

Other hyponyms of ejection include defenestration, deportation, barring, blackball, ouster, ousting.

ejection (noun)	ostracism (noun)
the act of forcing out someone or something	the act of excluding someone from society by general consent
the act of expelling or projecting or ejecting	the state of being banished or ostracized (excluded from society by general consent)