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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-sŏn′ĭk /

  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.

The arena, first announced in 2018, will be located in one of three Brabazon Hangars which were used in the development of the supersonic jet.

From BBC

Her priority list also includes strengthening cooperation with London and Rome on a supersonic fighter jet project and accelerating defence spending so it reaches two percent of GDP as early as this year.

From Barron's

“It will be a funny fact of history that an accelerated supersonic renaissance was one of the consequences of the AI boom.”

From The Wall Street Journal

In December, Boom Supersonic, a startup that set out to sell sustainable supersonic jets, unveiled its new product: a gas turbine for data centers.

From The Wall Street Journal

The Symphony turbine jet engine will power Boom’s Overture supersonic jet.

From Barron's

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.