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ostracize

American  
[os-truh-sahyz] / ˈɒs trəˌsaɪz /
especially British, ostracise

verb (used with object)

  • ostracizes,
    present (3rd person singular)
  • ostracized,
    past participle,  past
  • ostracizing
    present participle
  1. to exclude, by general consent, from society, friendship, conversation, privileges, etc..

    His friends ostracized him after his father's arrest.

    Synonyms:
    blacklist, snub, shun
    Antonyms:
    accept
  2. to banish (a person) from their native country; expatriate.

  3. (in ancient Greece) to banish (a citizen) temporarily by popular vote.


ostracize British  
/ ˈɒstrəˌsaɪz /

verb

  1. to exclude or banish (a person) from a particular group, society, etc

  2. (in ancient Greece) to punish by temporary exile

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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Etymology

Origin of ostracize

First recorded in 1640–50; from Greek ostrakízein, equivalent to óstrak(on) “potsherd, tile, ballot” (akin to óstreion oyster ( def. ) ) + -izein -ize ( def. )

Explanation

If you banish someone or ignore him, you ostracize him. When the Iranian president claimed that the Holocaust was a hoax, he was ostracized by the international community. Ostraka is an ancient Greek word for pottery shard. Thousands of years ago, in the Greek city of Athens, there was a public process where you would write the name of someone you wanted to kick out of town on a broken ceramic fragment. If enough Athenians wrote the same name, that person was sent away for ten years. This process was called an ostracism.

Keep Reading on Vocabulary.com

Vocabulary lists containing ostracize

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

When the Athenians voted to ostracize him, he became a Persian governor.

From The Wall Street Journal Mar. 9, 2026

“The Traitors” is a social game, so when Funches’ early big swing at another contestant misses terribly, the rest of the players instantly ostracize him.

From Salon Jan. 28, 2026

Rather than ostracize the neighborhood’s teenagers, he wants to find ways to engage them and show them the value of being part of a culture.

From Los Angeles Times Jun. 27, 2023

Irish Spring soap makes its Super Bowl debut with a spot that posits a world in which Irish people in cable-knit sweaters will ostracize you if you smell bad.

From Slate Feb. 14, 2022

I want to see the kingdom ostracize him.

From "The Belles" by Dhonielle Clayton

Will's signature swagger, which was once-revered in his old town, now ostracizes him from his peers and loved ones.

From Salon Feb. 12, 2022

The film portrays how Japanese society, often working like a claustrophobic village, ostracizes and punishes what it sees as erring individuals.

From Seattle Times Oct. 24, 2021

Mesa County’s “siloed, non-collaborative behavior ostracizes us from our Western Slope neighbors,” she added.

From Washington Times Mar. 6, 2019

A man searches for answers a decade after his close-knit high school clique inexplicably ostracizes him.

From Slate Nov. 30, 2014

Your view of her situation is admirable, and, by your skilful tactique, it is she herself that ostracizes the society that would only have accepted her on sufferance.

From The Fortunes Of Glencore by Charles James Lever

And now, all of these years later, you feel ostracized from your remaining family and, more than that, you were left with a few mementoes of those formative years and no inheritance.

From MarketWatch Jul. 7, 2026

But pro-Soviet intellectuals ostracized him when he dared to speak honestly about life behind the Iron Curtain.

From The Wall Street Journal May 8, 2026

Her being ostracized in season 2 is a direct result of her bad decisions.

From The Wall Street Journal Apr. 6, 2026

It hosts many animals that previously were injured, ostracized from their social groups or illegally kept as pets — such as Neil.

From Los Angeles Times Nov. 11, 2025

Even after all this time, my mom was still ostracized for something that happened long ago.

From "Because of Mr. Terupt" by Rob Buyea

Some believe the erasure of Black LGBTQ+ leaders stems from respectability politics, a strategy in some marginalized communities of ostracizing or punishing members who don’t assimilate into the dominant culture.

From Seattle Times Oct. 12, 2023

The Vatican has long argued that in some countries, reporting claims to law enforcement could result in the ostracizing of victims and potentially a death sentence for the accused.

From New York Times Mar. 25, 2023

Instead of ostracizing Black, some of the students tried to change his mind.

From Slate Jan. 11, 2023

“The real harm to transgender youth lies in the bullying and ostracizing that they face for being branded as ‘different.’”

From Washington Times Mar. 9, 2022

With the conviction that she is past redemption, doors closed, no one loving her, people, yes, her own sex, ostracizing her—she becomes hopeless, desperate, reckless.

From Fighting the Traffic in Young Girls or, War on the White Slave Trade by Ernest A. (Ernest Albert) Bell

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