get someone's number

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Idioms and Phrases

Also, have someone's number . Determine or know one's real character or motives, as in You can't fool Jane; she's got your number . This expression uses number in the sense of “a precise appraisal.” Charles Dickens had it in Bleak House (1853): “Whenever a person proclaims to you, 'In worldly matters I'm a child,' ... that person is only crying off from being held accountable ... and you have got that person's number.” [Mid-1800s]

Word of the Day

April 18, 2024petrichor

[pet-ri-kawr]

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

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