passer-by

Definition

A person who is passing by (that is, walking past).

Etymology

From passer + by. Compare bystander.

Example Sentences

• "When he tripped and fell in the street, several kind passers-by helped him up."
• "With a little manœuvring they contrived to meet on the doorstep which was […] in a boiling stream of passers-by, hurrying business people speeding past in a flurry of fumes and dust in the bright haze."