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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
駅のホームで友人とすれ違った。
I passed by a friend on the station platform.
二人の意見がすれ違っている。
The two people's opinions are at odds.
狭い道で車同士がすれ違うのは難しい。
Cars passed each other on the narrow road.