← Back to browse内城ないじょう[naijou]nounJapanese definitionNo Japanese definition yet.English definitioninner castle; main keep; innermost enclosure of a castleExamplesNo examples yet.Loading examples…Ask about thisKanji内inside; within; between; among; house; homeナイ、ダイ / うち · 4 strokes内容国内案内内部以内内閣市内都内城castleジョウ、セイ / しろ · 9 strokes城茨城宮城城主城下町城壁古城山城