ひらやまじろ 平山城 LinksSentence search for 平山城Sentence search for ひらやまじろSentence search for ひらさんじょうKanji details for 平, 山 and 城Edit in JMdict Noun1. castle on a hill in the plains; flatland-mountain castleSee also 平城 ひらじろ, See also 山城 やまじろOther forms平山城 【ひらさんじょう】 Discussions Log in to talk about this word.