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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.

But its treatment in general showed "there are still areas where the #MeToo movement has not yet breached the sound barrier, chiefly in men's football," she added.

From Barron's • Feb. 24, 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

Along the coast in the city of Tyre, Israeli jets are swooping low, breaking the sound barrier - but the beach below is more crowded.

From BBC • Aug. 26, 2024

In 1947, Chuck Yeager broke the sound barrier just north of Los Angeles County, at Edwards Air Force Base, where space shuttles landed from 1981 through 2009.

From Los Angeles Times • Jun. 17, 2024

Surely they’d broken the sound barrier but were moving too fast to notice.

From "The Last Last-Day-of-Summer" by Lamar Giles