Meaning & use
supersonic
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Meanings
adjectivenot comparable
Traveling or able to travel faster than the speed of sound.
Grammar: Used before a noun or after a linking verb: a supersonic jet; the plane is supersonic.
Patterns
- supersonic aircraft
- supersonic speed
- fly supersonic
The supersonic jet crossed the Atlantic in under three hours.
Only military planes are routinely supersonic.
Engineers are designing a new supersonic airliner.
adjectivenot comparabletechnical
Relating to speeds greater than that of sound.
Grammar: Often used in technical phrases like supersonic flow or supersonic boom.
Patterns
- supersonic flow
- supersonic boom
The wind tunnel can produce supersonic airflow.
Supersonic conditions create a shock wave around the nose of the craft.
Common combinations
- supersonic jet
- The supersonic jet left a loud boom behind it.
- supersonic speed
- The missile travels at supersonic speed.
- go supersonic
- The pilot waited for clearance to go supersonic.
- supersonic flight
- Supersonic flight over land is restricted in many countries.
Synonyms and how they differ
- hypersonic
- Hypersonic means much faster than sound, usually five times the speed of sound or more, so it is not a direct swap for supersonic.
- ultrasonic
- Ultrasonic describes sound waves above the range of human hearing and does not mean fast movement.
Opposites
Word family
- supersonically adverb
- In a supersonic way; at a speed faster than sound.
Commonly confused: supersonic or ultrasonic? supersonic or hypersonic?
supersonic vs ultrasonic
Ultrasonic refers to sound frequencies people cannot hear, while supersonic refers to speed faster than sound.
supersonic vs hypersonic
Hypersonic is for speeds of Mach 5 and above; supersonic covers anything above Mach 1.
Practice
The new engine allows the plane to fly at ______ speed, faster than sound.
Choose one answer.
Supersonic means faster than the speed of sound, which fits the sentence. Ultrasonic is about sound waves, subsonic is slower than sound, and hypersonic is much faster (Mach 5+), so none of those fit as well.
Make it your own
Write a sentence using “supersonic”, then check it and compare it with the examples above.