古城 (こじょう)old castle; old fortress

古城, its kanji, and other words that share them.Open this graph

Kanji in 古城

古代こだいancient times
古典こてんclassic (work, esp. book); the classics
古墳こふんancient burial mound; barrow
考古学こうこがくarchaeology; archeology
中古ちゅうこused; second-hand
古書こしょold book; rare book
最古さいこthe oldest
中古車ちゅうこしゃused car; secondhand car
城しろcastle
城内じょうないinside of a castle
傾城けいせいbeauty; siren
城下じょうかland near a castle
城下町じょうかまちcastle town; city in Japan that developed around the castle of a feudal lord
城主じょうしゅlord of a castle
城壁じょうへきrampart; castle walls
城跡しろあとcastle site; ruins of a castle

See how 古城 connects to the rest of Japanese.