Meaning of “fidelity” in the English Dictionary

"fidelity" in American English

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fidelitynoun [ U ]

us /fəˈdel·ɪ·t̬i/

fidelity noun [ U ] (BEING LOYAL)

the state of remaining loyal to someone and keeping the promises you made to that person

fidelity noun [ U ] (ACCURACY)

the degree to which a copy of something shows the true character of the original:

The fidelity of the tape recording was so poor that you could not understand much of what was said.

(Definition of “fidelity” from the Cambridge Academic Content Dictionary © Cambridge University Press)

"fidelity" in Business English

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fidelitynoun [ U ]

uk /fɪˈdeləti/ us

loyalty to a person or organization:

Customer trust and fidelity are not acquired once and for all.
They recently began testing a fidelity card scheme in Scotland prior to a national launch.

(Definition of “fidelity” from the Cambridge Business English Dictionary © Cambridge University Press)