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to make sure; to check; to ascertain; to confirm; to verify
出発前にパスポートがあるか慥かめた。
I checked if I had my passport before departing.
答えが正しいかどうか先生に慥かめてもらう。
I'll have the teacher check if the answer is correct.
予約の日時を電話で慥かめておいたほうがいい。
You should confirm the reservation date and time by phone.