Last Updated
：2025/11/20
rack one's brain
Sense（1）
（ present singular third-person ）
（ participle present ）
（ participle past ）
（ past ）
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(figuratively) To struggle to think of or remember something.
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rack one's brain
One may rack one's brain for days trying to solve a difficult puzzle.
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One may rack one's brain for days trying to solve a difficult puzzle.
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