# thinking cap

idiom

Source: https://englishreference.com/idiom/thinking-cap
Updated: 2026-08-10

## Meaning

A metaphorical state of focused thinking or concentration, invoked to encourage problem-solving.

## Examples

- Put on your thinking cap to solve this puzzle.
- We need a better marketing strategy, so put on your thinking caps and share your ideas.
- The committee donned their thinking caps to address the complex logistical challenges that threatened the success of the upcoming international conference.

## Origin

Probably by analogy with considering cap, which is attested from the early 17th century. (disputed)

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.