shun vs ostracise

shun and ostracise both are verbs.

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

As verbs, shun and ostracise are synonyms defined as:

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

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