茨城県[ibarakiken] Ibaraki prefecture (Kantou area)
王城[oujou] royal castle
下城[gejou] withdrawing from the castle
牙城[gajou] stronghold (esp. of an enemy or opponent)
開城[kaijou] capitulation (of fort)

宮城[kyuujou] Imperial Palace
宮城県[miyagiken] Miyagi prefecture (Tohoku area)
傾城[keisei] beauty
堅城[kenjou] strong fortress
古城[kojou] old castle

改廃[kaihai] change
軍備撤廃[gunbiteppai] complete disarmament
公娼全廃[koushouzenpai] abolition of licensed prostitution
荒廃[kouhai] ruin
廃める[yameru] to stop

全廃[zenpai] total abolition
全廃論者[zenpaironsha] abolitionist
撤廃[teppai] annulment
廃る[sutaru] to go out of use
廃れる[sutareru] to go out of use