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🇫🇷French Source WordCode: FR

Mach 1

Pronunciation / Transliteration: mah œn

🇬🇧 Direct English Meaning:
Mach-1/ˈmɑːk wʌn/
nounadjectiveCEFR B2 (Upper)Top #8500 frequency
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🇫🇷 Example Sentence in French:

"L'avion de chasse a atteint Mach 1 en altitude."

Comprehensive Definitions & Senses

2 senses
As noun
  1. 1

    The speed of sound in a given medium, particularly in air, used as a standard unit of speed measurement in aerodynamics.

    "The experimental aircraft successfully accelerated beyond Mach-1 during the afternoon test flight."
As adjective
  1. 1

    Moving at or possessing the speed equal to the speed of sound.

    "The jet entered a Mach-1 dive over the designated testing range."
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Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

Named after Ernst Mach, an Austrian physicist and philosopher, combined with the number 1 to represent the exact speed of sound. The term entered aviation and scientific nomenclature in the mid-20th century as high-speed aerodynamic flight became achievable.

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