イディオム主な意味とニュアンス実用例文break down①機械が故障する ②感情が決壊して泣き崩れる ③細分化・分析するMy car broke down on the highway. Let's break down the project costs.break up①(恋人・関係が)別れる ②(集会・会議が)お開きになる ③音声が途切れるThey broke up after dating for three years. Your voice is breaking up on Zoom.break out①(火災・戦争・感染症が)突発する ②脱出する・吹き出物が出るA fire broke out in the basement. He broke out of the prison.break into①(建物に)不法侵入する ②(新規市場・業界に)参入するSomeone broke into the office last night. The tech firm wants to break into the Asian market.break through障壁を突破する、打開策を見出すScientists hope to break through the research barrier.