Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Faithfulness to obligations, duties, or observances.
  • n. Exact correspondence with fact or with a given quality, condition, or event; accuracy.
  • n. The degree to which an electronic system accurately reproduces the sound or image of its input signal.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Faithfulness to one's duties.
  • n. Loyalty to one's spouse or partner, including abstention from extramarital affairs (except in an open marriage).
  • n. Accuracy, or exact correspondence to some given quality or fact.
  • n. The degree to which a system accurately reproduces an input.

from the GNU version of the Collaborative International Dictionary of English

  • n. Adherence to a person or party to which one is bound; loyalty.
  • n. Adherence to the marriage contract.
  • n. Adherence to truth; veracity; honesty.

from The Century Dictionary and Cyclopedia

  • n. Good faith; careful and exact observance of duty or performance of obligations: as, conjugal or official fidelity.
  • n. Faithful devotion or submission; unswerving adherence; close or exact conformity; fealty; allegiance: as, fidelity to a husband or wife, or to a trust; fidelity to one's principles or to instructions; the dog is the type of fidelity.
  • n. Faithful adherence to truth or reality; strict conformity to fact; truthfulness; exactness; accuracy: as, the fidelity of a witness, of a narrative, or of a picture.
  • n. An order of Portugal, founded by John VI. in 1823 for the supporters of the monarchy during the insurrectionary movements in that country. Synonyms Faith, integrity, trustiness, trustworthiness, conscientiousness; Constancy, Faithfulness, etc. (see firmness).

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. accuracy with which an electronic system reproduces the sound or image of its input signal
  • n. the quality of being faithful

Etymologies

Middle English fidelite, from Old French, from Latin fidēlitās, from fidēlis, faithful, from fidēs, faith; see bheidh- in Indo-European roots.
(American Heritage® Dictionary of the English Language, Fourth Edition)
15th century, from French fidélité from Latin fidēlitās, from fidēlis ("faithful"), from fidēs ("faith, loyalty") (English faith), from Proto-Indo-European *bʰidʰ-, zero-grade of Proto-Indo-European *bʰeydʰ- (“to command, to persuade, to trust”) (English bide). (Wiktionary)

Examples

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  • !

    November 13, 2008

  • The H.M.S. Fidelity was listed as a "transport" captured at Yorktown in 1781.

    October 29, 2007