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Definition of principle:

  1. The cause, source, or origin of anything; an element; ground of action; motive; a constituent part; a fundamental truth; a law comprehending many subordinate truths; a settled law or rule of conduct or action; a tenet or doctrine.
  2. To establish firmly in the mind.


universal, rationale, formula, good, outline, system, source, linguistic rule, prescript, character, explanation, purity, rule, normal, respectability, integrity, pattern, fiber, strong, modesty, commitment, goodness, dominion, virtue, ruler, regulation, theoretically, right, clarification, convention, gloss, order, propriety, fundamental, decency, ideal, origin, law, article of belief, precept, article of faith, ideally, interpretation, honesty, commandment, in essence.

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