ルールルールCommon wordJLPTN3Freq.FrequencyTop 2,000Meanings1nounrule; regulationA general term for a rule, regulation, or principle that governs behavior or procedure. Used in everyday contexts.このゲームのルールを説せつ明めいしてください。Please explain the rules of this game.学がっ校こうにはたくさんのルールがある。There are many rules at school.