0 past simple and past participle of ostracize
1 to avoid someone intentionally, or to prevent someone from taking part in the activities of a group:
His colleagues ostracized him after he criticized the company in public.
Perpetually untrustworthy individuals are identified and ostracized within the organization, and in turn the overall security of the organization is maintained.
Because of this conformist behaviour they were more or less ostracized socially by their classmates.
It is not unusual for people who take advantage of the cooperation or generosity of others to find themselves socially ostracized or worse.
And second, they establish graduated enforcement mechanisms to allow potential defectors to learn about the costs of defection without being ostracized (at least, initially).
Choosing whom she will marry against her parents' wishes, and expressing women's desire in her poetry, she is ostracized for violating her family's honor.
Any temptation to portray this 'enthusiast' as belonging to some ostracized minority is negated by his full participation in the public musical and social culture of the time.
They were often ostracized by their community for having engaged in a relationship with a foreigner - even when often, it appears, it was done against her will.
There is another important problem, which is how to prevent the sick from being ostracized.