vroom
n. countable C2 Proficiency US //ˈvɹum// vroom
n. a sound that imitates the engine of a fast car. You use it when you are talking about speed or power in a playful way.
n. an onomatopoeic representation of a high-revving internal combustion engine. Often used in informal contexts to signify speed, power, or a sense of excitement.
The car made a loud vroom as it sped away.
He imagined the vroom of the engine as he played with his toy race car on the kitchen table.
The advertisement relied on the rhythmic vroom of the engine to evoke a sense of raw mechanical power and youthful rebellion.
Imitative.