ostracise vs shun

ostracise and shun both are verbs.

Word	Noun	Adjective	Verb	Adverb
ostracise	No	No	Yes	No
shun	No	No	Yes	No

As verbs, ostracise and shun are synonyms defined as:

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

ostracise (verb)	shun (verb)
avoid speaking to or dealing with	avoid and stay away from deliberately; stay clear of
expel from a community or group	expel from a community or group