margin - definition in the American English Dictionary - Cambridge Dictionaries Online

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English definition of “margin”

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margin

noun [C]  us   /ˈmɑr·dʒɪn/

margin noun [C] (BORDER)

the border of empty space around the written or printed text on a page: She was in the habit of making notes in the margins of her textbooks.

margin noun [C] (AMOUNT/DEGREE)

the amount or degree of difference between a higher amount and a lower amount: He was reelected by a wide margin. A margin for error is the amount by which you can make a mistake without risking complete failure: There is no margin for error – it’s got to work the first time. A margin of error is the degree to which a calculation can be wrong without changing how accurate the final result is: The poll had a margin of error of plus or minus 4%.
(Definition of margin from the Cambridge Academic Content Dictionary © Cambridge University Press)
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