往復[oufuku] making a round trip
恢復[kaifuku] restoration
回復可能[kaifukukanou] recoverable
回復不可能[kaifukufukanou] non-recoverable
回復力[kaifukuryoku] resilience

経済回復[keizaikaifuku] economic recovery
経済復興[keizaifukkou] economic revitalization
克復[kokufuku] restoration
主権回復[shukenkaifuku] restoration of sovereignty
修復[shuufuku] restoration

悪念[akunen] evil thought
一念[ichinen] determined purpose
一念ほっき[ichinenhokki] being resolved to (do something)
一般概念[ippangainen] general idea
怨念[onnen] grudge

臆念[okunen] something one always remembers
概念[gainen] general idea
観念[kannen] idea
観念主義[kannenshugi] German idealism
基本概念[kihongainen] basic overview

恩讐[onshuu] love and hate
復讐[fukushuu] revenge
復讐の念[fukushuunonen] desire for vengeance
復讐劇[fukushuugeki] revenge tragedy

復讐心[fukushuushin] desire for revenge
復讐戦[fukushuusen] return match
君父の讐は倶に天を戴かず[kunpunoadahatomonitenwoitadakazu] not wanting to live in the same world as one's father's or lord's enemies
復讐者[fukushuusha] avenger