sound barrier

noun

Sonic barrier, the sudden increase in drag (resistance) and other effects experienced by moving objects when their speed approaches that of sound or becomes supersonic (which used to be considered a barrier to higher speeds).

Meanings

nounsound barrier (countable and uncountable, plural sound barriers)

plural sound barriers

  1. uncountableSonic barrier, the sudden increase in drag (resistance) and other effects experienced by moving objects when their speed approaches that of sound or becomes supersonic (which used to be considered a barrier to higher speeds).
  2. countableA noise barrier, a structure beside a highway designed to reduce the noise of traffic.

    St Ives: The guided busway on the old railway alignment to Cambridge has just passed its tenth anniversary. Railfuture has noted its down-at-heel physical appearance, with dirty concrete beams, damaged sound barriers, and unmanaged vegetation.

    2021 October 6, Howard Johnston, “Regional News: Anglia”, in RAIL, number 941, page 29

Synonyms & antonyms

nounthe increase in aerodynamic drag as an airplane approaches the speed of sound

Broader
dragretarding force

Synonym sets from Open English WordNet, CC BY 4.0.

Translations

Danish lydmur, støjvold
  • lydmurdrag and other effects of approaching the speed of sound
  • støjvoldnoise-reducing structure
  • støjskærmnoise-reducing structure
  • støjafskærmningnoise-reducing structure
Finnish äänivalli, meluaita
  • äänivallidrag and other effects of approaching the speed of sound
  • meluaitanoise-reducing structure
  • meluvallinoise-reducing structure
French mur du son, mur anti-bruit
  • mur du sondrag and other effects of approaching the speed of sound
  • mur anti-bruitnoise-reducing structure
German Schallmauer, Lärmschutzwand
  • Schallmauerdrag and other effects of approaching the speed of sound
  • Lärmschutzwandnoise-reducing structure
  • Lärmschutzwallnoise-reducing structure
Italian barriera del suono, muro del suono
  • barriera del suonodrag and other effects of approaching the speed of sound
  • muro del suonodrag and other effects of approaching the speed of sound
  • barriera antirumorenoise-reducing structure
  • barriera acusticanoise-reducing structure
Norwegian Bokmål lydmur
  • lydmurdrag and other effects of approaching the speed of sound
Polish bariera dźwięku, bariera dźwiękowa
  • bariera dźwiękudrag and other effects of approaching the speed of sound
  • bariera dźwiękowadrag and other effects of approaching the speed of sound
Russian звуково́й барье́р
  • звуково́й барье́р (zvukovój barʹjér)drag and other effects of approaching the speed of sound
Swedish ljudvall, bullerplank
  • ljudvalldrag and other effects of approaching the speed of sound
  • bullerplanknoise-reducing structure
Tagalog tunuging hadlang
  • tunuging hadlangdrag and other effects of approaching the speed of sound
Thai กำแพงเสียง, กำแพงเสียง
  • กำแพงเสียงdrag and other effects of approaching the speed of sound
  • กำแพงเสียงnoise-reducing structure
  • กำแพงกันเสียงnoise-reducing structure
Turkish ses duvarı, ses bariyeri
  • ses duvarıdrag and other effects of approaching the speed of sound
  • ses bariyerinoise-reducing structure
Ukrainian звукови́й бар'є́р
  • звукови́й бар'є́р (zvukovýj barʺjér)drag and other effects of approaching the speed of sound
Cite this entry
APA

sound barrier. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/sound%20barrier

MLA

“sound barrier.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/sound%20barrier. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “sound barrier,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/sound%20barrier.

Source: sound barrier on Wiktionary, CC BY-SA 4.0.