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

  • n. An unusually large person, animal, or thing.
  • adj. Unusually large: jumbo shrimp; a jumbo jet.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Especially large or powerful.
  • n. An especially large or powerful person, animal or thing.
  • n. A popular name for an elephant.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Very large.
  • n. Any object which is a very large example of its class.

from The Century Dictionary and Cyclopedia

  • n. A very large individual of its kind or class.
  • n. Any large, cumbersome machine; in particular, a home-made windmill built for lifting water for irrigation on the Great Plains.
  • n. In the West Indies, same as mumbo-jumbo. In the form jumby it is used in various compounds.

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

  • adj. of great mass; huge and bulky


After Jumbo, a large elephant exhibited by P.T. Barnum, probably from slang, clumsy person.
(American Heritage® Dictionary of the English Language, Fourth Edition)



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