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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.

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

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

From New York Times • Jun. 30, 2023

Dubbed “Supremium” internally, according to people familiar with the strategy, the new tier will be Spotify’s most expensive plan and likely offer a hi-fi feature the company first announced it was working on in 2021.

From Seattle Times • Jun. 22, 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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