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: a usually high speed expressed by a Mach number
an airplane flying at Mach 2
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Noun
The Mach 1 boots also use a polyurethane plastic with a thickness adjusted to enhance vibration damping and stability.
—Outside Editors, Outside Online, 11 Nov. 2024
For that, Babolat Jet Mach 3 is a great crossover shoe.
—David Hochman, Forbes, 4 Nov. 2024
Popular on Variety The upcoming hybrid documentary, produced by Anna Mach Rumanová and Martina Netíková for Slovakia’s Filmsomnia and Czech Republic’s Cinémotif Films, is now in production, with the premiere set for spring of 2026.
—Marta Balaga, Variety, 1 Nov. 2024
Ford makes the best-selling non-Tesla EV with the Mustang Mach E.
A version of this article originally appeared on Jalopnik’s The Morning Shift.
—Owen Bellwood / Jalopnik, Quartz, 15 Oct. 2024
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Word History
Etymology
Noun
Mach number
Phrases Containing mach
Dictionary Entries Near mach
Cite this Entry
“Mach.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mach. Accessed 23 Nov. 2024.
Kids Definition
Mach
nounMedical Definition
Mach
noun
: a usually high speed expressed by a Mach number
an airplane flying at Mach 2
Biographical Definition
More from Merriam-Webster on mach
Nglish: Translation of mach for Spanish Speakers
Britannica English: Translation of mach for Arabic Speakers
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