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hi-fi

American  
[hahy-fahy] / ˈhaɪˈfaɪ /

noun

  1. high fidelity.

  2. a phonograph, radio, or other sound-reproducing apparatus possessing high fidelity.


adjective

  1. of, relating to, or characteristic of such apparatus; high-fidelity.

hi-fi British  
/ ˈhaɪˈfaɪ /

noun

    1. short for high fidelity

    2. ( as modifier )

      hi-fi equipment

  1. a set of high-quality sound-reproducing equipment

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of hi-fi

1945–50, shortened form of high fidelity

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

I once needed to drive an old 1958 hi-fi console to a repair shop an hour away.

From The Wall Street Journal Jun. 13, 2026

Vinyl Room joins a short list of places where audiophiles can go to listen to music on hi-fi equipment, which many argue is the best way to experience it.

From Los Angeles Times Feb. 27, 2026

However, Swift is the first to reach the milestone based on music alone, as her rivals' fortunes incorporate business ventures in fashion, beauty products and hi-fi equipment.

From BBC Nov. 3, 2023

The company made critically acclaimed, sophisticated hi-fi systems whose buyers included Frank Sinatra and Hugh Hefner.

From New York Times Jun. 30, 2023

I hope it’s not too backward to say that I felt like I had never heard anything on my hi-fi back home that came out that good.

From "The Secret Life of Bees" by Sue Monk Kidd

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