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Synonyms for principle

noun

  1. A fundamental law

    origin, source, postulate; see law 4.

  2. A belief or set of beliefs; often plural

    system, opinion, teaching; see belief 1, faith 2, policy.

in principle

in theory, ideally, in essence; see theoretically.

See principle in Webster's New World Roget's A-Z Thesaurus II

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