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to separate (by distance, time, etc.); to isolate; to partition; to divide
to interpose; to have between
to alienate; to estrange
大きな壁が二つの部屋を隔てている。
A large wall separates the two rooms.
海を隔てた国との交流が始まった。
Exchange with countries across the sea has begun.
時を隔てて再会できたことが嬉しい。
I'm happy to meet again after so much time.