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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

But the 24-year-old company has still been around a year longer than Ethan Thornton, the Massachusetts Institute of Technology dropout who is taking it over in an acquisition by his drone startup, Mach Industries.

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 fourth Quarterhorse will be built in El Segundo — with the goal of hitting Mach 3.

From Los Angeles Times • Apr. 7, 2026

What was going through your head when A. Scott Crossfield broke Mach II?

From "The Glass Castle" by Jeannette Walls




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