mach

1 of 2

abbreviation

Mach

2 of 2

noun

: a usually high speed expressed by a Mach number
an airplane flying at Mach 2

Examples of mach in a Sentence

Recent Examples on the Web
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Noun
The frame is robust 6061 T-6 aluminum, and big Mach 1 Trucky 30 27.5-inch hoops shod in real-deal Schwalbe Eddy Current 2.6-inch wide mountain bike tires keep things rolling. William Roberson, Forbes, 17 Mar. 2025 The original data was derived from the Mach Natural Resources LP representing Limited Partner Interests annual 10-K report dated March 13, 2025. Quartz Intelligence Newsroom, Quartz, 13 Mar. 2025 Security officials said 80 hostages who were released Tuesday night — 43 men, 26 women and 11 children — had reached safety at a railway station in the Mach district of Balochistan, Pakistan’s largest, least populated and least developed province. Mushtaq Yusufzai, NBC News, 12 Mar. 2025 The missile, which can fly at Mach 3.5, or three and a half times faster than the speed of sound, can be deployed on ships and mobile trailers. William Lambers, Newsweek, 10 Mar. 2025 See All Example Sentences for mach

Word History

Etymology

Noun

Mach number

First Known Use

Noun

1947, in the meaning defined above

Time Traveler
The first known use of mach was in 1947

Browse Nearby Words

Cite this Entry

“Mach.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mach. Accessed 24 Mar. 2025.

Kids Definition

Mach

noun

Medical Definition

Mach

noun
: a usually high speed expressed by a Mach number
an airplane flying at Mach 2

Biographical Definition

Mach

biographical name

ˈmäḵ How to pronounce Mach (audio)
ˈmäk
Ernst 1838–1916 Austrian physicist and philosopher

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