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thinking cap

a state of mind marked by reflection or concentration:
If we put on our thinking caps, we may come up with the answer.
Origin of thinking cap
First recorded in 1870-75 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for thinking cap
Historical Examples
  • Your thinking cap isnt on straight to-day, or you wouldnt have let Fairspeckle pull the wool over your eyes the way he did.

    The Gray Phantom Herman Landon
  • Well, after that remark there was nothing Jimmy Rabbit could do except to put on his thinking cap.

    The Tale of Nimble Deer Arthur Scott Bailey
  • Now you put your thinking cap on and invent a name, something romantic and pretty.

    The Imaginary Marriage Henry St. John Cooper
  • "And about this wedding license, I'll put on my thinking cap," remarked Granny.

    The Amazing Inheritance Frances R. Sterrett
  • Just let me put on my thinking cap, and I'll fix 'em, and don't you forget it!

    The Rover Boys on the Farm Arthur M. Winfield (AKA Edward Stratemeyer)
  • Well, I put my thinking cap on, and I began to wonder whether I could manage to keep you with me always.'

    The Bountiful Lady Thomas Cobb
  • So I put on my thinking cap, and I soon learned of a very zealous antiquary living about five miles from where I was stopping.

    Joe The Hotel Boy Horatio Alger Jr.
  • Deadwood Dick withdrew from the edge of the ledge then, and put on his thinking cap.

    Deadwood Dick Jr. Branded Ed. L. Wheeler
  • Ben Jolly sat chewing a toothpick vigorously, his thinking cap on.

  • Ephraim, put on your own thinking cap, and if she forgets anybody you let me know.

Idioms and Phrases with thinking cap

thinking cap

The American Heritage® Idioms Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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