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air castle

castle in the air

a fanciful or impractical notion or hope; daydream.
Also called air castle, castle in Spain.
Origin of castle in the air
1570-80 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for air-castle
Historical Examples
  • Many an air-castle did we rear that night which the lapse of years have laid in the dust.

    Walter Harland Harriet S. Caswell
  • I have built up a kind of air-castle of the past, that is all.

    Fernley House Laura E. Richards
  • The college girl cannot marry at this impulsive, air-castle age.

  • "So that is the air-castle," exclaimed Kyzie, when they were all within sight of it.

  • My air-castle is situated right in the middle of the state of Texas, and it's the only house in the state.

    The Dorrance Domain Carolyn Wells
  • For a man who had just had an air-castle fall on his neck, Ole didn't talk very dejectedly.

    At Good Old Siwash George Fitch
  • This air-castle was the abode of innocence, but it was not yet time for its building at all.

    The Butterfly House Mary E. Wilkins Freeman
  • My air-castle was of this architecture: Max would win old Castleman's favor--an easy task.

  • He was still dreaming his air-castle, when they drove through the gate that led to her home.

    A Daughter of the Dons William MacLeod Raine
  • He could have gone too far; said something wrong; happiness and friendship could tumble, an air-castle in ruins.

    Wilderness of Spring Edgar Pangborn
British Dictionary definitions for air-castle

castle in the air

a hope or desire unlikely to be realized; daydream
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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