: a usually high speed expressed by a Mach number
an airplane flying at Mach 2
Examples of mach in a Sentence
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Michael Verdon, Robb Report, 26 July 2025
Children's wear Mach 6: on sale for $87.99 (20% off), originally $110
ORA Recovery Slide 3: on sale for $39.99 (33% off), originally $60
The Hoka Clifton 9 for kids has the same cushioning and comfort as the adult Clifton line.
—Nora Colomer
May Earn A Commission If You Buy Through Our Referral Links. This Content Was Created By A Team That Works Independently From The Fox Newsroom., FOXNews.com, 23 July 2025
By using this method, Invictus is expected to reach a speed of Mach 5.
—New Atlas, 19 July 2025
But at 26 km above the planet, as the spacecraft slowed to Mach one, The Exploration Company lost contact.
—Eric Berger, ArsTechnica, 18 July 2025
See All Example Sentences for mach
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Noun
The final numbers include a max speed of Mach 0.94 (721 mph), an ultrahigh speed of Mach 0.92 (706 mph), and a standard cruise of Mach 0.85 (652 mph)—the latter delivering its benchmark range.
—Michael Verdon, Robb Report, 26 July 2025
Children's wear Mach 6: on sale for $87.99 (20% off), originally $110
ORA Recovery Slide 3: on sale for $39.99 (33% off), originally $60
The Hoka Clifton 9 for kids has the same cushioning and comfort as the adult Clifton line.
—Nora Colomer
May Earn A Commission If You Buy Through Our Referral Links. This Content Was Created By A Team That Works Independently From The Fox Newsroom., FOXNews.com, 23 July 2025
By using this method, Invictus is expected to reach a speed of Mach 5.
—New Atlas, 19 July 2025
But at 26 km above the planet, as the spacecraft slowed to Mach one, The Exploration Company lost contact.
—Eric Berger, ArsTechnica, 18 July 2025
See All Example Sentences for mach
Cite this Entry
“Mach.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mach. Accessed 3 Aug. 2025.
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Mach
nounMedical Definition
Mach
noun
: a usually high speed expressed by a Mach number
an airplane flying at Mach 2
Biographical Definition
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