a comprehensive and fundamental law, doctrine, or assumption; a rule or code of conduct; habitual devotion to right principles… See the full definition

Principal as an adjective means ‘most important’: … [ C ] His guiding principle is that everyone should have equal access to high-quality health care. [ C ] He refused to compromise his …

A principle is a kind of rule, belief, or idea that guides you. You can also say a good, ethical person has a lot of principles.

There are many principles observed in physics, notably in cosmology which observes the mediocrity principle, the anthropic principle, the principle of relativity and the cosmological …

Principle, canon, rule imply something established as a standard or test, for measuring, regulating, or guiding conduct or practice. A principle is a general and fundamental truth that …

A principle is a general belief that you have about the way you should behave, which influences your behaviour. Buck never allowed himself to be bullied into doing anything that went against …

Definition of principle noun from the Oxford Advanced Learner's Dictionary. [countable, usually plural, uncountable] a moral rule or a strong belief that influences your actions. He has high …