A fundamental assumption or guiding belief. / A rule used to choose among solutions to a problem. / (sometimes pluralized) Moral rule or aspect.

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

plural of principle

Third-person singular simple present indicative form of principle

Based on, having, or manifesting principles / strongly adhering to, or heedful of, guiding beliefs or moral rules

simple past tense and past participle of principle

With regard to the fundamentals, but not to the particulars. / According to theory.

Because of one's values or beliefs.

A system of ethics based on the four moral principles of autonomy, beneficence, nonmaleficence, and justice.

present participle of principle