/fʌndəˈmɛntəl lɔː/ – Phrase
Definition: 1. những nguyên tắc cơ bản của luật pháp;
2. đạo luật cơ bản, hiến pháp.
A more thorough explanation: Fundamental law refers to the basic principles and rules that form the foundation of a legal system or constitution. These laws are typically considered to be of paramount importance and are often difficult to amend or change. They serve as the framework for the governance of a society and are essential for maintaining order and protecting individual rights.
Example: The Constitution is considered the fundamental law of the United States, outlining the basic principles and structure of the government.