Dictionary/城主じょうしゅJoushu城主 (Joushu) is a Japanese noun meaning “lord of a castle”.Meaningsnounlord of a castleKanji in 城主城castle主lordRelated words城castleご主人your husband主人head (of a household)主head (of a household)主chief主(one's) master主head (of a household, etc.)主任person in charge主婦housewife店主shopkeeper留守absence主張claim