passerby

noun

A person who passes by, especially casually or by chance.

noun

One who passes by or near. Also by-passer.

noun

One who passes by, especially casually or by chance; one not directly involved in some action; a passer.

noun

Alternative spelling of passer-by.

noun

a person who passes by casually or by chance

noun

a person who passes by casually or by chance