原理

原理 refers to a fundamental truth, law, or rule that explains how something works. It is often used in scientific, technical, or philosophical contexts to describe the underlying basis of a phenomenon or system.

The character 原 (yuán) means 'original' or 'fundamental,' while 理 (lǐ) means 'principle' or 'reason.' Together, they form a term that emphasizes the foundational nature of a concept or rule.

原理 is commonly used in education, science, and technology. It can also appear in everyday discussions about how things function. Understanding principles is key to mastering complex systems or ideas.