Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio.
a person or thing that resembles another in sound: he is a Bogart sound-alike
sounding like another or each other: sound-alike names
Also written soundalike
Used by arrangement with John Wiley & Sons, Inc.
The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
One that closely resembles another in sound, especially by imitation of voice or of musical style: an Enrico Caruso sound-alike.