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idiom

rack your brains

RAK yer BRAYNZ

ræk jər breɪnz

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Syllable breakdown

rackyourbrains

Dictionary meaning

think very hard and search one's memory with great effort in order to remember something or find a solution; make an intense mental effort to retrieve information or generate ideas; the verb rack refers to stretching or straining, originally invoking the torture device that stretched the body, here applied metaphorically to the painful exertion of intense mental concentration

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