/liːɡəl ruːl/ – Phrase
Definition: 1. quy phạm pháp luật;
2. nguyên tắc cai trị theo pháp luật, nguyên tắc pháp luật trên hết.
A more thorough explanation: A legal rule is a principle or regulation established by a governing authority, such as a legislature or a court, that has the force of law and must be followed and enforced within a particular jurisdiction. Legal rules are designed to govern conduct, resolve disputes, and maintain order within society.
Example: The legal rule prohibiting discrimination against individuals based on their race is a cornerstone of our society.