ostracize vs banish

ostracize and banish both are verbs.

Word	Noun	Adjective	Verb	Adverb
ostracize	No	No	Yes	No
banish	No	No	Yes	No

As verbs, ostracize and banish are synonyms defined as:

Other synonyms of ostracize include ban, blackball, cast out, ostracise, shun.

ostracize (verb)	banish (verb)
avoid speaking to or dealing with	drive away
expel from a community or group	expel, as if by official decree
	expel from a community or group
	ban from a place of residence, as for punishment