choo-choo Hear it!

choo-choo definition

choo·-choo (c̸ho̵̅o̅′c̸ho̵̅o̅′)

noun

a railroad train or locomotive: a child's word

Etymology: echoic

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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