復旧（ふっきゅう、fuっkyuu）
- restoration

The Japanese word 復旧 復旧 primarily means "restoration," "recovery," or "reinstatement" of something to its original or a functional state, usually after some kind of damage, failure, or disruption. It implies bringing something back to how it was before the problem occurred. It can be used in various contexts, from physical repairs after a disaster to restoring services after a technical issue. The focus is on returning things to a working order or a previously existing condition.

⚫︎停電の後、電気が復旧しました。 Translation: The electricity was restored after the blackout. ⚫︎地震の後、道路の復旧作業が進んでいます。 Translation: Work is underway to restore the roads after the earthquake. ⚫︎システムの障害から、データの復旧に時間がかかりました。 Translation: It took time to recover the data due to the system failure.

You can use 復旧 in conversations when discussing the process of fixing, repairing, or recovering something. ⚫︎ It is appropriate when talking about bringing infrastructure back online after a natural disaster. ⚫︎ It can be used when referring to repairing a machine or computer system. ⚫︎ It's also suitable for general restoration and recovery scenarios. You can use it to talk about ongoing processes, completed actions, or plans for recovery. The word often pairs with verbs such as する(to do), 進める(to advance/proceed), 作業(work), etc.

復旧 is written in kanji, 復旧, with the reading ふっきゅう in hiragana. It is not typically written in katakana. There are no significant variations in the okurigana.

⚫︎ 回復(かいふく) - recovery, restoration (general use) ⚫︎ 修復(しゅうふく) - repair, restoration (often used for physical objects) ⚫︎ 再生(さいせい) - regeneration, restoration (can also mean recycling or playing something again) ⚫︎ 再開(さいかい) - resumption, restart (used for services or activities)

⚫︎ 破壊(はかい) - destruction ⚫︎ 故障(こしょう) - breakdown, failure ⚫︎ 停止(ていし) - suspension, shutdown

台風で被害を受けた地域のインフラの復旧］には時間がかかります。 ・Translation: It will take time to restore the infrastructure in the areas damaged by the typhoon. ・Explanation: This sentence uses 復旧 to describe the process of repairing infrastructure like roads, electricity, and water systems after a typhoon.

サーバーのクラッシュ後、システムの復旧］作業が開始されました。 ・Translation: After the server crash, work began on restoring the system. ・Explanation: This sentence uses 復旧 in the context of IT, describing the process of recovering a system after it has failed.

The word 復旧 is a combination of two kanji: 復(ふく) which means "return" or "restore," and 旧(きゅう) which means "old" or "former." Therefore, 復旧 literally means "to return to the old state" or "to restore to a former condition."