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

  • transitive v. To unfold, as a piece of paper money.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • v. To unfold, or render single.

from the GNU version of the Collaborative International Dictionary of English

  • transitive v. To unfold, or render single.

from The Century Dictionary and Cyclopedia

  • To unfold; render single.


from Wiktionary, Creative Commons Attribution/Share-Alike License

un- +‎ double


  • To undouble him, that he might fit into a coffin, they had been forced to lug him to a fire and thaw him out a bit.

    League of Old Men

  • Billy to brace his huge foot on the round of the chair, and to hold down the back with his hands, Cricket and Hilda, with another vigorous pull, managed to undouble Zaidee.

    Cricket at the Seashore

  • The dirty fist in the young surgeon's pocket was obliged to undouble itself, and come out of its ambush disarmed.

    The History of Pendennis, Volume 2 His Fortunes and Misfortunes, His Friends and His Greatest Enemy

  • Although it would offer him the chance to undouble his pawns, White cannot contemplate 14 bxc5?

    Susan Polgar Chess Daily News and Information

  • Shown backwards it is a heroic film about human experience: A man trapped in the logic of ghosts, trapped in a grayscale 2-D flat world, a photograph inside history, frozen in spectral finity: is unfrozen, and is lured outside of a maze where both his wife and son proceed to ‘undouble’ him and assist him in his war with his self and is finally able to drive away from the Overlook, from the lunarscape of this unreal summit and into a perfect mirror, earthmade.

    Information, Culture, Policy, Education: Net.madness

  • A profound silence reigned throughout the assembly, a pallid dread had taken possession of the countenances of the punters, and restless inquietude stretched every muscle of the face of him who kept the bank; and the lady of the house, who was seated next to him, observed with lynx's eyes every play made, and noted those who tallied, and made them undouble their cards with a severe exactness, though mixed with a politeness, which she thought necessary not to frighten away her customers.


  • "See here, young lady, you'll go over the banisters head first if you don't undouble yourself pretty soon.

    Beatrice Leigh at College A Story for Girls

  • "Why don't you go and spring about, and sing in the fields with your cousin, the Grasshopper?" was the ill-natured question of the Spider, as she twisted her web in one of the refuge-holes the Cricket had crept into; "I am sure your legs are long enough, if you would only take the trouble to undouble them.

    Parables From Nature


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