supersonic
US /ˌsuː.pɚˈsɑː.nɪk/
UK /ˌsuː.pɚˈsɑː.nɪk/

1.
supersonico
involving or denoting a speed greater than that of sound.
:
•
The new jet can fly at supersonic speeds.
Il nuovo jet può volare a velocità supersoniche.
•
A loud boom was heard as the aircraft broke the supersonic barrier.
Un forte boato fu udito quando l'aereo ruppe la barriera supersonica.