To exclude from a group. See Synonyms at blackball.
To banish by ostracism, as with old Greece.
To exile by ostracism; to banish by a popular vote, as at Athens.
To banish from community, by a broad consent; to exclude from personal, political, or private favor; to exclude from discussion or relationship; to shun. One are ostracized by a formal vote or by a widespread but informal agreement.
To exclude (people) from society or from a residential district, by maybe not communicating with all of them or by declining to acknowledge their presence; to will not speak to or keep company with; to shun.