What does mach mean?
Definitions for mach
mɑk, mɑxmach
This dictionary definitions page includes all the possible meanings, example usage and translations of the word mach.
Princeton's WordNet
Mach, Ernst Machnoun
Austrian physicist and philosopher who introduced the Mach number and who founded logical positivism (1838-1916)
Wiktionary
Machnoun
a ratio of the speed (of an object, etc.) to the speed of sound in the fluid or other medium through which the object travels. Usually used to describe supersonic speeds.
The jet traveled at Mach 3.
Machnoun
the Mach number
Machnoun
Ernst Mach, Austrian physicist 1838 - 1916.
ChatGPT
mach
"Mach" typically refers to a measure of speed based on the speed of sound. It is used in aviation and physics and is named after Austrian physicist Ernst Mach. For example, Mach 1 indicates the speed of sound in air, Mach 2 is twice the speed of sound, and so on. The actual speed represented by a Mach number varies based on the temperature and composition of the air or material through which the sound waves are traveling.
Wikidata
Mach
Mach is an operating system kernel developed at Carnegie Mellon University to support operating system research, primarily distributed and parallel computation. Although Mach is often mentioned as one of the earliest examples of a microkernel, not all versions of Mach are microkernels. Mach's derivatives are the basis of the modern operating system kernels in Mac OS X and GNU Hurd. The project at Carnegie Mellon ran from 1985 to 1994, ending with Mach 3.0, which was finally a true microkernel. Mach was developed as a replacement for the kernel in the BSD version of UNIX, so no new operating system would have to be designed around it. Today further experimental research on Mach appears to have ended, although Mach and its derivatives are in use in a number of commercial operating systems, such as NeXTSTEP and OPENSTEP, and most notably Mac OS X using the XNU operating system kernel which incorporates an earlier Mach as a major component. The Mach virtual memory management system was also adopted by the BSD developers at CSRG, and appears in modern BSD-derived UNIX systems, such as FreeBSD. Neither Mac OS X nor FreeBSD maintain the microkernel structure pioneered in Mach, although Mac OS X continues to offer microkernel inter-process communication and control primitives for use directly by applications.
Suggested Resources
MACH
What does MACH stand for? -- Explore the various meanings for the MACH acronym on the Abbreviations.com website.
Surnames Frequency by Census Records
MACH
According to the U.S. Census Bureau, Mach is ranked #6692 in terms of the most common surnames in America.
The Mach surname appeared 5,047 times in the 2010 census and if you were to sample 100,000 people in the United States, approximately 2 would have the surname Mach.
62.6% or 3,163 total occurrences were White.
28.8% or 1,456 total occurrences were Asian.
3.9% or 201 total occurrences were Black.
2.5% or 128 total occurrences were of Hispanic origin.
1.4% or 73 total occurrences were of two or more races.
0.5% or 26 total occurrences were American Indian or Alaskan Native.
Matched Categories
Usage in printed sourcesFrom:
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Anagrams for mach »
cham
Numerology
Chaldean Numerology
The numerical value of mach in Chaldean Numerology is: 4
Pythagorean Numerology
The numerical value of mach in Pythagorean Numerology is: 7
Examples of mach in a Sentence
True, I can fly at Mach-50 without effort and emit regenerative energy when I touch my brother, but mostly that's behind me.
There are no moving parts in the flow path, so that means there are no compressor blades to suck in the air, so we need something to get us up to above Mach 4 in order to get the compression into the engine.
Ford Mustang Mach-E, as cool as Ford Mustang Mach-E is, probably won't touch as many people as a Ford F-150 does.
It's almost like ... a jet fighter plane that can do mach six or seven versus an automobile, (Jet fighters) can solve problems that an automobile can't, but in most cases, you're not going to use it. And the fighter pilot is still going to need to take a car to the jet.
We're now producing a controllable, low-drag, aerodynamic configuration capable of stable operation from take-off, to sub-sonic, trans-sonic, super-sonic, and hypersonic to Mach 6.
Popularity rank by frequency of use
Translations for mach
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"mach." Definitions.net. STANDS4 LLC, 2025. Web. 9 Feb. 2025. <https://www.definitions.net/definition/mach>.
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