Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun vroom

1 sense of vroom

Sense 1
vroom -- (the roaring sound made by a motor that is running at high speed)
       => sound -- (the sudden occurrence of an audible event; "the sound awakened them")

Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb vroom

1 sense of vroom

Sense 1
vroom -- (make a loud, roaring sound, as of a car engine, while moving)
       => roar, howl -- (make a loud noise, as of wind, water, or vehicles; "The wind was howling in the trees"; "The water roared down the chute")