plural fidelities
Definition of fidelity
1a
: the quality or state of being faithful
his fidelity to his wife
b
: accuracy in details : exactness
The movie's director insisted on total fidelity to the book.
2
: the degree to which an electronic device (such as a record player, radio, or television) accurately reproduces its effect (such as sound or picture)
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Merriam-Webster unabridged
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Time Traveler for fidelity
The first known use of fidelity was in the 15th century
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