passerby

noun

pass·​er·​by ˌpa-sər-ˈbī How to pronounce passerby (audio)
ˈpa-sər-ˌbī
plural passersby ˌpa-sərz-ˈbī How to pronounce passerby (audio)
ˈpa-sərz-ˌbī
: one who passes by
A passerby saw the accident and offered to help.

Examples of passerby in a Sentence

A passerby saw the accident and stopped to help. Passersby were asked if they were registered to vote.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
At one point, a passerby knocked a drink onto a viewer who didn’t even turn away from the screen as the spiller apologized. Fran Hoepfner, Vulture, 13 Jan. 2026 Police say 56‑year‑old Heather Asendorf was discovered by a passerby. Joan Murray, Miami Herald, 10 Jan. 2026 The area was badly burned, but still Simpson noticed green sprouts peeking out of the ashy soil and from the branches of trees that the average passerby might assume were dead. Jaclyn Cosgrove, Los Angeles Times, 8 Jan. 2026 The Denver Fire Department said that a security guard was at the property at the time of the fire, but a passerby is the one who called 911. Jennifer McRae, CBS News, 7 Jan. 2026 See All Example Sentences for passerby

Word History

First Known Use

1567, in the meaning defined above

Time Traveler
The first known use of passerby was in 1567

Browse Nearby Words

Cite this Entry

“Passerby.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/passerby. Accessed 15 Jan. 2026.

Kids Definition

passerby

noun
pass·​er·​by ˌpas-ər-ˈbī How to pronounce passerby (audio)
plural passersby ˌpas-ərz- How to pronounce passerby (audio)
: one who passes by

More from Merriam-Webster on passerby

Last Updated: - Updated example sentences
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