: 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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Omar Kardoudi
may 13, New Atlas, 13 May 2026
Intercepting Mach 5 hypersonic weapons in space Hypersonic weapons, traveling at speeds of Mach 5 (five times the speed of sound) and above with unpredictable maneuvers, pose significant challenges to traditional missile defenses.
—Chris Young, Interesting Engineering, 12 May 2026
But engineers were careful to design Ingenuity not to spin its carbon-fiber rotors faster than the speed of sound out of concern that exceeding Mach 1 (roughly 540 mph on Mars) might cause the blades to shatter.
—ArsTechnica, 8 May 2026
The setback resolved, the comfortable, five-passenger Blazer EV joined the Hyundai Ioniq 5, Ford Mustang Mach-E and Tesla Model Y in the popular segment.
—James Raia, Mercury News, 4 May 2026
See All Example Sentences for mach
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Noun
What makes this especially tricky is that the speed of sound (Mach 1) isn't a universal number.
—Omar Kardoudi
may 13, New Atlas, 13 May 2026
Intercepting Mach 5 hypersonic weapons in space Hypersonic weapons, traveling at speeds of Mach 5 (five times the speed of sound) and above with unpredictable maneuvers, pose significant challenges to traditional missile defenses.
—Chris Young, Interesting Engineering, 12 May 2026
But engineers were careful to design Ingenuity not to spin its carbon-fiber rotors faster than the speed of sound out of concern that exceeding Mach 1 (roughly 540 mph on Mars) might cause the blades to shatter.
—ArsTechnica, 8 May 2026
The setback resolved, the comfortable, five-passenger Blazer EV joined the Hyundai Ioniq 5, Ford Mustang Mach-E and Tesla Model Y in the popular segment.
—James Raia, Mercury News, 4 May 2026
See All Example Sentences for mach
Cite this Entry
“Mach.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mach. Accessed 19 May. 2026.
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Mach
nounMedical Definition
Mach
noun
: a usually high speed expressed by a Mach number
an airplane flying at Mach 2
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