overhear
Definition
To unintentionally hear a conversation in which one is not involved.
日本語 無意識に他人の会話を聞く
Example
"I accidentally overheard their private discussion while waiting in the hallway."
To unintentionally hear a conversation in which one is not involved.
日本語 無意識に他人の会話を聞く
"I accidentally overheard their private discussion while waiting in the hallway."