SAT GRE TOEFL ostracize Definition To exclude someone from a group or society. Example "She was ostracized by her peers after revealing the secret." Sign in to save SAT Quiz → GRE Quiz → TOEFL Quiz → ← ostentation ostrich → Study tips featuring "ostracize" Let the Argument Reveal Unfamiliar Word Meanings Group Words Together by Emotional Tone Map Each Word Into a Connected Network Related words SAT antonym SAT abase SAT abdicate SAT abdomen SAT abduction SAT abet SAT abeyance SAT abject SAT abjure SAT ablution SAT abnegate SAT abnormal