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Definitions

Mach

[mahk] / mɑk /
NOUN
Mach number
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.

California defense tech startup Mach Industries said Tuesday it raised $300 million, nearly quadrupling the company’s valuation to $1.8 billion within a year.

From Los Angeles Times • Jun. 3, 2026

The deal provides Mach with access to more than two decades of technical development in superfast weapons that reach beyond Earth’s atmosphere.

From The Wall Street Journal • May 19, 2026

Mach has designed and tested, but not yet produced at scale, five different autonomous aircraft that will soon integrate Exquadrum’s technology.

From The Wall Street Journal • May 19, 2026

The company is currently building its third Quarterhorse aircraft, which it expects will fly faster than Mach 2, in the Atlanta facility.

From Los Angeles Times • Apr. 7, 2026

Their rockets had reached speeds of Mach 15 in flight, and they were confident of their abilities to lift a payload—a satellite and a human passenger—into orbit.

From "Hidden Figures" by Margot Lee Shetterly




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