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Definitions

sound barrier

NOUN
physical boundary to supersonic
Synonyms


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.

"Even during our religious holidays, even on Good Friday, jets fly over us and break the sound barrier just to scare us," al-Jamal said.

From Barron's • Apr. 5, 2026

To mimic the conditions of a rocket ascent, they launched the missile and, after it broke the sound barrier, triggered the abort system.

From Los Angeles Times • Mar. 31, 2026

The test flight of a plane called XB-1, developed by the company Boom Supersonic, became the first civilian jet to break the sound barrier since the Concorde.

From The Wall Street Journal • Nov. 19, 2025

Heart-stopping sonic booms interrupt the hum of traffic in Beirut, as Israeli warplanes break the sound barrier in the skies above.

From BBC • Aug. 14, 2024

The second woman to break the sound barrier was one of Cochran's WASPs, Jean Hixson, who flew a Delta Dagger military jet in 1958, which was against regulations.

From "Women in Space" by Karen Bush Gibson