noun
ostracism
AH-struh-siz-uhm/ˈɑːstrəsɪzəm/
Exclusion from a community or group through collective rejection.
He faces ostracism from his teammates after criticizing the coach.

Etymology
A potsherd was a ballot: Athenian citizens scratched on it the name of someone they wanted banished. The name of this political procedure broadened to deliberate exclusion from society or a group.
In context
ostracism is an especially subtle and Silent form of exclusion and might often go unnoticed by individuals other than the target of the ostracism
More examples
- Fear of ostracism keeps many members from questioning the group's rules.
- Leaving the religion can lead to ostracism within the community.
- The rumors lead to months of ostracism at school.
Forms
ostracism
ostracize verb — Exclude someone from a group through rejection.