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thinking cap
noun
: a state or mood in which one thinks
—usually used in the phrase put one's thinking cap on
Examples of thinking cap in a Sentence
Recent Examples on the Web
Strange Worlds: Improvised Science Fiction Sea Tea Comedy Theater, 15 Asylum St., Hartford
The madcap improvers of the Sea Tea Improv empire put on their space-age thinking caps to create unique science fiction scenarios.
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Christopher Arnott, Hartford Courant, 8 June 2024
While Karl Benz was inventing the car and his wife was road-tripping it in 1885, a French inventor named Léon Bollée put his thinking cap on.
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Alex Goy, Ars Technica, 27 May 2024
Please put back on your thinking cap and recall some of the earlier remarks that were made.
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Lance Eliot, Forbes, 14 Feb. 2024
Every recreational drug that a person could take was in his system … put on your thinking caps — what happens when people take drugs?
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St. John Barned-Smith, San Francisco Chronicle, 2 May 2023
Time to put your thinking cap on.
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Rachel Cormack, Robb Report, 13 Jan. 2022
Put on your sleuth-like thinking cap.
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Lance Eliot, Forbes, 14 Oct. 2021
The ultimate goal is a wireless memory prosthesis that could be worn like a real-life thinking cap by anyone seeking to learn something new, from veterans recovering from traumatic brain injuries to the elderly suffering from Alzheimer’s disease to students cramming for final exams.
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Robert Lee Hotz, WSJ, 13 Aug. 2021
For the former, Gullatt put on his thinking cap.
—
Marc Bona, cleveland, 9 July 2021
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Word History
First Known Use
1827, in the meaning defined above
Dictionary Entries Near thinking cap
Cite this Entry
“Thinking cap.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/thinking%20cap. Accessed 11 Feb. 2025.
Kids Definition
thinking cap
noun
: a state or mood in which one thinks
put on your thinking cap
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Merriam-Webster unabridged
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