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Synonyms

supersonic

American  
[soo-per-son-ik] / ˌsu pərˈsɒn ɪk /

adjective

  1. greater than the speed of sound waves through air.

  2. capable of achieving such speed.

    a supersonic plane.

  3. ultrasonic.


supersonic British  
/ ˌsuːpəˈsɒnɪk /

adjective

  1. being, having, or capable of reaching a speed in excess of the speed of sound

    supersonic aircraft

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

supersonic Scientific  
/ so̅o̅′pər-sŏnĭk /
  1. Having a speed greater than that of sound in a designated medium, usually air; having a speed greater than Mach 1.

  2. Compare hypersonic subsonic transonic


Other Word Forms

  • supersonically adverb

Etymology

Origin of supersonic

First recorded in 1915–20; super- + sonic

Compare meaning

How does supersonic compare to similar and commonly confused words? Explore the most common comparisons:

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

On a crisp morning in California’s Mojave Desert, the skies cleared just enough for a jet to take off—and go supersonic.

From The Wall Street Journal

The people in the Blue Jays’ organization who contributed to Yesavage’s supersonic rise tell stories about their brief interactions with him as if they are recounting the origin of a veteran ace in his twilight.

From The Wall Street Journal

The fast solar wind -- a supersonic stream of charged particles -- originates mainly in the Sun's polar coronal holes and fills most of the heliosphere, shaping conditions in interplanetary space.

From Science Daily

In terms of purely destructive power, however, hypersonic missiles are not hugely different from supersonic or subsonic cruise missiles, according to Mr Freer.

From BBC

These too will be flown by RAF pilots, at supersonic speed.

From BBC