fidelity

/fə-ˈde-lə-tē/

Middle English fidelite, borrowed from Middle French fidelité, borrowed from Latin fidēlitāt-, fidēlitās, from fidēlis "faithful, loyal, trustworthy" (from fidē-, stem of fidēs "trust, belief, faith" + -lis, denominal suffix of appurtenance) + -itāt-, -itās -ity

noun

  1. the quality or state of being faithful

  2. accuracy in details : exactness

  3. the degree to which an electronic device (such as a record player, radio, or television) accurately reproduces its effect (such as sound or picture)

his fidelity to his wife

The movie's director insisted on total fidelity to the book.

fidelity allegiance fealty loyalty devotion piety mean faithfulness to something to which one is bound by pledge or duty. fidelity implies strict and continuing faithfulness to an obligation, trust, or duty. allegiance suggests an adherence like that of citizens to their country.

noun

  1. the reproduction of an effect (such as sound or an image) that is very faithful to the original