A basic generalization that is accepted as true and that can be used as a basis for reasoning or conduct

A rule or standard especially of good behavior

A basic truth or law or assumption

A rule or law concerning a natural phenomenon or the function of a complex system

Rule of personal conduct

(law) an explanation of the fundamental reasons (especially an explanation of the working of some device in terms of laws of nature)

-ism is a suffix in many English words, originally derived from the Ancient Greek suffix -ισμός, and reached English through the Latin -ismus, and the French -isme.

Discovery, statement or rule being the foundation for other considerations, statements or activites

Principles and parameters is a framework within generative linguistics in which the syntax of a natural language is described in accordance with general principles and specific parameters that for particular languages are either turned on or off. For example, the position of heads in phrases is determined by a parameter.

The Principle is a 2014 American independent film produced by Rick DeLano and Robert Sungenis.

Principle, in chemistry, refers to a historical concept of the constituents of a substance, specifically those that produce a certain quality or effect in the substance, such as a bitter principle, which is any one of the numerous compounds having a bitter taste.

To equip with principles; to establish, or fix, in certain principles; to impress with any tenet or rule of conduct.