Synonyms for

Mach

Verb / mɑ:k / Another word for mach — explore alternatives below. For syllable breakdowns and pronunciation, see this word on Syllablesworld.

Definition

Mach is a unit used to measure the speed of an object in relation to the speed of sound.

Synonyms & similar words

mach ernstmach velocity speed pace rapidity swiftness quickness fleetness haste celerity expeditiousness

Synonyms by register

Formal

speed velocity rate pace

Informal

zip zoom speed go

Literary

swiftness celerity rapidity

Antonyms

slow sluggish leisurely unhurried creeping crawling

Common collocations

  • mach number
  • mach speed
  • mach 1
  • mach 2
  • supersonic mach
  • transonic mach
  • hypersonic mach

Word family

noun mach
adjective mach
adverb mach

Usage note

Primarily used in physics and engineering to refer to the ratio of an object's speed to the speed of sound in the surrounding medium. It is often used with numbers, e.g., Mach 1.

Example sentences

  1. The rocket traveled at Mach 4.
  2. The car was going at Mach 0.5.
  3. The speed of sound is approximately Mach 1.
  4. The pilot broke the sound barrier at Mach 1.
  5. The Mach number indicates how fast an object is traveling compared to the speed of sound.

Quotes

  • “Flying at Mach 3 was like driving a car at the speed limit on a snaky, mountainous two-lane highway.” - Captain Robert J. Gilliland
  • “The faster you go, the shorter you are.” - William John Macquorn Rankine
  • “The only limit to our realization of tomorrow will be our doubts of today.” - Franklin D. Roosevelt

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