One who travels or has traveled, as to distant places.
The definition of a witness is a person who has seen an event or who testifies about what he has seen.
The definition of a bystander is a person who stands near but doesn't take part in an event.
Find another word for passer-by. In this page you can discover 6 synonyms, antonyms, idiomatic expressions, and related words for passer-by, like: traveler, witness, bystander, observer, passerby and passer.