How to Use Mach in a Sentence
Mach
noun-
This is greater than Mach 4, and faster than the fastest jet plane.
—WIRED, 10 Nov. 2023
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As Trimble points out, that’s about 80 mph short of Mach 3.
—Eric Tegler, Forbes, 21 Feb. 2024
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The rest of the region is moving at Mach speed and you will be left behind.
—Caitlin McFall, FOXNews.com, 7 July 2025
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One Mach is equal to the speed of sound, which is roughly 760 miles an hour at sea level.
—Johnny Dodd, Peoplemag, 21 Sep. 2024
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His launch angle, nerds, was straight — with a Mach 2 exit velo.
—Nick Canepa, San Diego Union-Tribune, 4 Nov. 2023
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But flying faster than the speed of sound—Mach 1—was a barrier many thought couldn’t be crossed.
—Rob Verger, Popular Science, 8 Dec. 2020
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The jets, which are just theoretical at this point, would be able to fly at Mach 4—or twice the speed of the Concorde.
—Bryan Hood, Robb Report, 1 Sep. 2023
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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
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The company’s Halcyon jet would travel at Mach 5 — or five times the speed of sound.
—Monica Rodman, Washington Post, 18 Mar. 2024
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Russia has fired the Kinzhal, which can fly at Mach 5 or greater, several times into Ukraine.
—Brad Dress, The Hill, 21 Nov. 2024
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The size of the experimental airspace for today's flight limited how long the jet was able to fly above Mach 1.
—Brett Tingley, Space.com, 28 Jan. 2025
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The primary objective is to test the vehicle's speed up to Mach 1.1.
—Eric Berger, Ars Technica, 12 July 2024
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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
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Ukrainian officials said the missile that struck Dnipro reached Mach 11.
—David Faris, Newsweek, 29 Dec. 2024
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The multi-mission missile that flies at Mach 5+ can be launched from on a wide variety of aircraft.
—New Atlas, 4 Aug. 2024
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Hypersonic weapons are missile systems that travel at speeds in excess of Mach 5, or five times the speed of sound.
—Kyle Mizokami, Popular Mechanics, 19 Jan. 2022
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One thing that did work on both its January and Mach launch attempts was the successful recapture of the Super Heavy booster back at the launch site.
—Richard Tribou, The Orlando Sentinel, 27 May 2025
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Hypersonic weapons are expensive and difficult-to-produce systems able to travel at Mach 5—i.e., upwards of five times the speed of sound.
—Ellie Cook, MSNBC Newsweek, 7 July 2025
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And there’s really no better choice than the SR-71—which was nicknamed the Blackbird—a long-range, high-altitude reconnaissance aircraft that could fly at speed in excess of Mach 3.
—Bryan Hood, Robb Report, 21 Aug. 2023
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Ramjets are usually best suited to work at supersonic levels from Mach 2 to Mach 4.
—Michael Verdon, Robb Report, 22 Mar. 2025
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While the exact impact velocity is classified, it is estimated to exceed Mach 1—the speed of sound (767 mph).
—Deni Ellis Béchard, Scientific American, 18 June 2025
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During his address to the nation that evening, Putin proclaimed that the missile travels at speed of Mach 10 and cannot be intercepted by any existing air defense systems.
—Katya Soldak, Forbes, 21 Nov. 2024
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In other words, the inventors were concerned that the aircraft might break apart upon reaching Mach 1 (about 761 mph at sea level and standard temperatures).
—Julie Boatman, Robb Report, 10 July 2024
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According to the company, the ultimate goal is to use an advanced version of the engine to power the Stargazer M4, a Mach 4 reusable passenger aircraft.
—David Szondy may 25, New Atlas, 25 May 2025
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The sound barrier is the sudden increase in aerodynamic drag that occurs when an object approaches Mach 1.
—Jonathan Granoff, Newsweek, 29 Jan. 2025
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Hypersonic missiles are considered to be any missile traveling at over Mach 5, or about one mile per second.
—Michael Franco, New Atlas, 12 July 2024
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Planned specifications for this supersonic airliner include a cruising speed of Mach 1.7, and a maximum speed of Mach 2.2.
—Eric Berger, Ars Technica, 28 Jan. 2025
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Following this, according to the company's timeline for Mission Possible, the capsule's parachutes were due to deploy at a velocity between Mach 0.8 and Mach 0.6.
—ArsTechnica, 24 June 2025
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The contracts will create innovative concept designs and technology roadmaps for Mach 2-plus travel.
—Doc Louallen, USA TODAY, 30 Aug. 2023
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Hypersonic weapons are widely feared for their speed — at least Mach 5, traveling miles in seconds — and maneuverability.
—Colin Demarest, Axios, 2 Oct. 2024
Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'Mach.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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