from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun An adult.

from the GNU version of the Collaborative International Dictionary of English.

  • adjective fully developed; adult; mature; -- of people and animals.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective Of, pertaining to, or suitable for adults.
  • adjective Adult; fully developed; mature.
  • noun An adult.

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

  • noun a fully developed person from maturity onward
  • adjective (of animals) fully developed


Sorry, no etymologies found.


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  • That means that the so-called grownup in the race is gone.

    CNN Transcript Jan 31, 2008 2008

  • He has to work with a grownup, which is Nancy Pelosi.

    CNN Transcript Jul 30, 2008 2008

  • We're missing the so-called grownup, the adult in the Democratic Party, so expect these two to go at each other tonight -- Kitty.

    CNN Transcript Jan 31, 2008 2008

  • John Edwards today said that after watching his rivals slug it out last night, he's proud to represent what he's calling the grownup wing of the Democratic Party.

    CNN Transcript Jan 22, 2008 2008

  • Once we got to the "grownup" section, I was disheartened to find this the only evidence that Charlie had been there:

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  • * He was on a panel and did some book-signing that I wanted to catch, but by the time I got over to the "grownup" section he was long lone.

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  • I ran into her recently and she was very surprised that this 'grownup' outing remained so strong in my memories, ending at what was it?

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  • Many are postponing things like marriage, family, buying a house and finding a so-called 'grownup' job.

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  • Over the course of 2009 I have read a wide range of book, from children's books to what one could say is "grownup" fantasy series.

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  • Can't wait to see/read more about that 'grownup' book you're working on!!!

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