passerby

[pas-er-bahy, -bahy, pah-ser-] / ˈpæs ərˈbaɪ, -ˌbaɪ, ˈpɑ sər- /

NOUN

bystander

Synonyms

STRONGEST

eyewitness observer onlooker spectator

STRONG

kibitzer looker-on viewer watcher witness

WEAK

gaper

Antonyms

STRONGEST

participant

NOUN

pedestrian

Synonyms

STRONGEST

hiker stroller walker

STRONG

ambler jaywalker

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.

Speaking to the Sun, a passerby saw the bag on the side of a road and alerted her partner after becoming suspicious.

From BBC • Apr. 4, 2026

Restaurant terraces sit deserted, while souvenir, watersports and perfume vendors watch for the rare passerby.

From Barron's • Mar. 13, 2026

The sight of the full battalion brings grins to every passerby.

From Salon • Feb. 5, 2026

“That guy smells like a doughnut,” said one passerby.

From The Wall Street Journal • Oct. 8, 2025

The woman began to call out and to shake her bowl at every passerby.

From "The Good Earth" by Pearl S. Buck