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Synonyms

bystander

American  
[bahy-stan-der] / ˈbaɪˌstæn dər /

noun

  1. a person present but not involved; chance spectator; onlooker.

    Synonyms:
    sidewalk superintendent, rubberneck, witness, passerby, viewer, observer

bystander British  
/ ˈbaɪˌstændə /

noun

  1. a person present but not involved; onlooker; spectator

"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

Etymology

Origin of bystander

First recorded in 1610–20; by- + stand ( def. ) + -er 1 ( def. )

Explanation

Someone who observes an event without taking part in it is a bystander. The police may want to interview any bystanders who witnessed a robbery, to get a description of the robber. A bystander does exactly what the word describes: they stand by, watching what's happening but not participating. You'll often hear the phrase "innocent bystander." For example, a newspaper might report on a fight breaking out after a football game, resulting in injuries to innocent bystanders. Before this word was coined around 1610, stander-by was common.

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Vocabulary lists containing bystander

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.

Juan kept his son afloat long enough for a bystander to pull Kevin from the water relatively unharmed, Michelle, 44, said.

From Los Angeles Times • May 8, 2026

That seems fair to me, as a bystander.

From MarketWatch • May 8, 2026

When the police arrived, he pointed them in the direction the man had headed before waiting alongside another female bystander with Shine until an ambulance arrived.

From BBC • May 3, 2026

About a month after Sheridan was arrested, prosecutors moved to dismiss the case after a bystander video surfaced showing clearly that Sheridan hadn’t assaulted Bovino.

From Salon • Apr. 15, 2026

It is hard for a bystander not to do so.

From "The Lives of a Cell" by Lewis Thomas

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