What does break the sound barrier mean?
break the sound barrier
Definition
Of an aircraft: to speed up past the speed of sound, which makes a loud bang heard on the ground.
Example sentences
A fighter jet broke the sound barrier over town yesterday and set off every car alarm on our street.
A fighter jet broke the sound barrier over town yesterday and set off every car alarm on our street.
Dad flew on Concorde once and swears he didn't feel a thing when it broke the sound barrier.
Dad flew on Concorde once and swears he didn't feel a thing when it broke the sound barrier.