American English

Definition of fidelity noun from the Oxford Advanced American Dictionary



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  1. 1fidelity (to something) (formal) the quality of being loyal to someone or something fidelity to your principles
  2. 2fidelity (to somebody) the quality of being faithful to your husband, wife, or partner by not having a sexual relationship with anyone else marital/sexual fidelity opposite infidelity
  3. 3fidelity (of something) (to something) (formal) the quality of being accurate the fidelity of the translation to the original text see also high fidelity
See the Oxford Advanced Learner's Dictionary entry: fidelity

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