English

Noun

high fidelity ‎(uncountable) (abbreviated as hi-fi or HiFi)

1. An electronic system that reproduces a given sound or image with relatively high accuracy.
   • 1954 November 13, “The low-down on high fidelity”, in Billboard, page 127:

     High Fidelity is an attempt to minimize the effect of the electro-mechanical means necessary to the reproduction of music.

2. A high-quality reproduction of sound
   • 1980 December 20, Maxell (advertisement), Billboard, page 75:

     AFTER 500 PLAYS OUR HIGH FIDELITY TAPE STILL DELIVERS HIGH FIDELITY

Translations

Adjective

high fidelity ‎(not comparable)

1. (of a sound system) Characterized by minimal distortion.