PASSERBY Scrabble 15 Words With Friends 16 Definition noun a person who passes by casually or by chance. — synonyms: passer-by, passer Examples “When he tripped and fell in the street, several kind passers-by helped him up.” See all 209 words you can make from PASSERBY → 8-letter words Words starting with P Words ending with Y ← Unscramble different letters