- a variation of passerby.
passer-by
Britishnoun
Explanation
A passer-by is someone who just happens to walk past something. If you trip and spill the contents of your backpack on the sidewalk, a kind passer-by will probably stop and help you gather your things. If you witness a car accident while you're walking to school, you're a passer-by, and if you stroll past someone who's juggling flaming torches on the sidewalk, you're also a passer-by. Before the mid-sixteenth century, the now-obsolete passager had the same meaning. Today, passer-by is a fairly straightforward word ("one who passes by"); its only slightly confusing aspect being the plural form, which is passers-by.
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.
The latest discovery was made by a passer-by, who spotted the body on his way to work, police spokesperson Brig Athlenda Mathe told reporters at the scene.
From BBC ● Sep. 14, 2026
They had entered the water to try to help him but were pulled to safety by a passer-by.
From BBC ● Jun. 5, 2026
A passer-by spoke to her, which she says saved her life.
From BBC ● Nov. 28, 2025
Play at Dawson Memorial Field in Danbury, Essex, was suspended over summer after a passer-by was struck on the leg by a ball as he unloaded his car on 17 May.
From BBC ● Oct. 1, 2025
The Verdun section of Montreal was in no sense a dressy neighborhood, and I was convinced that every passer-by was giving me a second, basically censorious look.
From "Nine Stories" by J. D. Salinger
![]()
Random Word
Spin the wheel and learn a new word!
Get a wordDefinitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.