from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Informal A locomotive train.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The sound made by a steam locomotive.
  • n. A railway locomotive.
  • n. A railway train. (Also called a choo-choo train)

from the GNU version of the Collaborative International Dictionary of English

  • n. a train or a locomotive; -- a child's word.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a child's word for locomotive


From baby-talk imitation of the sound of a locomotive whistle.
(American Heritage® Dictionary of the English Language, Fourth Edition)



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