Meaning & use

supersonic

adjective·Academic

Moving or capable of moving faster than the speed of sound.

See it in a sentence

The fighter jet reached supersonic speed within seconds of takeoff.

Engineers are developing a new supersonic passenger aircraft for airlines.

A note on using this word

Supersonic specifically means faster than sound, roughly 767 miles per hour at sea level; hypersonic refers to even greater speeds.

Words with a similar meaning

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Choose a synonym to suit the sentence. Meanings can overlap without being identical.

Words with an opposite meaning

subsonic

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