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to pass (by) each other; to brush past
to miss (meeting) each other; to fail to meet
to be at odds; to clash; to be in conflict
駅で友人と擦れ違ったらしい。
It seems I passed by my friend at the station.
二人の気持ちが擦れ違ってしまった。
Their feelings ended up going past each other.
狭い道で車と擦れ違うのは怖い。
It's scary passing cars on a narrow road.