Definition of "vroom" []

• The loud, roaring noise of an engine operating at high speed. (noun)
• To move noisily at high speed in or as if in a motor vehicle. (verb-intransitive)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Click here to visit Kevin Provencher and Allen Lessels '' Gone Racing 'blog, covering things that go' vroom 'in NH."
• "My daughter has recently showed an interest in pushing her toys around as though they were a car and making "vroom" sounds."
• "Gwen Dulugat, 27, also from Paris, said the van -- unauthorized to pick up passengers at the airport -- took off with a "vroom" when Port Authority cops tried to prevent it from leaving."