Word

しろ
castle
Word

suf
じょう
castle (in place names)
Word

fortress (surrounded by a wall, moat, etc.)
Word

宮城

きゅうじょう
Imperial Palace (esp. from 1888 to 1946)
Word

山城

やまじろ、さんじょう
mountain castle
Word

城主

じょうしゅ
lord of a castle
Word

築城

ちくじょう、ついき
fortification; castle construction
Word

城下

じょうか
land near the castle
Word

城下町

じょうかまち
castle town; town around castle
Word

居城

きょじょう
castle of a daimyo; castle of feudal lord