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rein
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/reɪn/ 
| singular | rein |
| plural | reins |
- 2
reins
[plural] control of a company, government, or organizationthe reins of power/government/state:It’s his deputy who really holds the reins of power.
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
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This is the British English definition of rein. View American English definition of rein.
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