principle
US /ˈprɪn.sə.pəl/
UK /ˈprɪn.sə.pəl/

1.
principe, fondement
a fundamental truth or proposition that serves as the foundation for a system of belief or behavior or for a chain of reasoning
:
•
The principle of equality is central to their philosophy.
Le principe d'égalité est central à leur philosophie.
•
He lives by a strict set of moral principles.
Il vit selon un ensemble strict de principes moraux.
2.
principe, loi
a general scientific theorem or law that has been established and is generally accepted
:
•
The principle of gravity explains why objects fall to the earth.
Le principe de la gravité explique pourquoi les objets tombent sur terre.
•
Understanding the basic principles of physics is essential.
Comprendre les principes de base de la physique est essentiel.