Pronunciation: /ˈpæsərˌbaɪ/
noun a person who is passing by, especially casually or by chance
A1 The passerby stopped to help the lost child.
A2 The passerby asked for directions to the nearest bus stop.
B1 The passerby witnessed the car accident and called for help.
B2 The passerby offered a helping hand to the elderly woman struggling with her groceries.
C1 The passerby was hailed as a hero for rescuing the drowning swimmer.
C2 The passerby's quick thinking saved the day during the building fire.
formal The passerby stopped to ask for directions.
informal A passerby just asked me for the time.
slang Yo, did you see that passerby check out the new store?
figurative Like a passerby in the night, he came and went without a trace.
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