to sharpen someone's mind
- phrasal verb
- Regular reading can sharpen your mind and keep you intellectually engaged.
Examples
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Playing chess is said to sharpen someone's mind at any age.
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Challenging discussions with colleagues always sharpen my mind.
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Reading regularly can sharpen someone's mind.
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Meditation helps to sharpen someone's mind.
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Engaging in puzzles can sharpen someone's mind and enhance cognitive skills.
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Taking on challenging projects often helps to sharpen someone's mind and improve problem-solving abilities.
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Participating in debates regularly can sharpen someone's mind and boost critical thinking.
Synonyms
To make an idea, image, or argument clearer and more precise
To make a blade or tool sharp using a fine stone
How Mentally Sharp
Surface Forms
Morphology
The meaning is directly derivable from the constituents: 'sharpen' (make more acute or refined) applied to 'mind' (the faculty of thinking) yields 'make someone's thinking clearer or more effective.' This metaphorical use of 'sharpen' for cognitive abilities is cross-linguistically common and follows a productive pattern, so a B1 learner who knows the words would likely understand it.
Etymology
Sharpen someone's mind comes from the idea of making a tool or pencil sharper: to sharpen makes an edge or tip clearer and stronger, and the mind is the part that thinks. So, to sharpen someone's mind means to help them 'think more clearly and quickly'.