A fundamental truth or proposition serving as the foundation for a system of belief or behavior

A rule or belief governing one's personal behavior

सिद्धांत

English Usage: The principle of democracy ensures that every citizen has a voice.

Hindi Usage: लोकतंत्र का सिद्धांत सुनिश्चित करता है कि हर नागरिक की एक आवाज हो।

A basic assumption or guiding rule in a field of study

आधारभूत धारणा

English Usage: The principle of conservation is crucial in physics.

Hindi Usage: संरक्षण का आधारभूत धारणा भौतिकी में महत्वपूर्ण है।