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rein

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noun [countable] American English pronunciation: rein /reɪn/ 
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singularrein
pluralreins
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  2. 2

    reins

     [plural] control of a company, government, or organization
    hand/take over the reins (=give someone control of something or take control of it):

    Hiroshi Okuda took over the reins of Toyota in August 1995.

    hold the reins (=be the person who controls something):

    the designers who hold the creative reins at Dior fashion house

    the reins of power/government/state:

    It's his deputy who really holds the reins of power.

    Thesaurus entry for this meaning of rein

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This is the American English definition of rein. View British English definition of rein.

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