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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.

Reaching Mach 5 involves the use of a so-called ramjet, which is similar to a traditional jet engine but doesn’t have any moving parts.

From Los Angeles Times • Apr. 7, 2026

Mach, which makes autonomous drone technology, hasn’t achieved unicorn status yet, and is valued at about $500 million.

From Barron's • Mar. 31, 2026

His company, Southern California-based Mach Industries, last year spun up a balloon project and developed a new way of manufacturing material that avoids hand-stitching and radically reduces the cost.

From The Wall Street Journal • Feb. 16, 2026

These waves reached speeds of up to Mach 5.6.

From Science Daily • Feb. 8, 2026

The fulfillment of Mach 1 fed the appetite for Mach 2.

From "Hidden Figures" by Margot Lee Shetterly




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