Meaning: This noun refers to the quality or state of being faithful to someone, such as a spouse, or something, such as one’s country. Fidelity can also refer to accuracy in details. When applied to electronic devices, fidelity is the degree to which those devices accurately reproduce something, such as sound or images.
Origin: This word came to English by the way of French in the 15th Century and is derived from the Latin root Fidelis which means faithful, loyal or trustworthy. While fidelity was originally exclusively about loyalty, it has for centuries also been used to refer to accuracy.
Usage: The movie takes full advantage of the film medium while maintaining fidelity to the book.
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