US /reɪn/ UK /reɪn/
noun verb

Meanings

  1. 1
    noun

    a long, narrow strap attached to a horse's bit, used to guide or control the animal

    She pulled on the rein to slow the horse down.

  2. 2
    noun

    the power to direct or control something

    He took over the reins of the company.

  3. 3
    verb

    to control, guide, or restrain something or someone

    The government needs to rein in spending.

Thesaurus

Synonyms
1 noun · a long, narrow strap... bridlestrapleadtetherhalter
2 noun · the power to direct or... controlcommandchargeleadership
3 verb · to control, guide, or... restraincurbcontrolhold backkeep in check
Opposites

Etymology

From Proto-Indo-European reg-/reig- ('to bind, tie') via Proto-Germanic reina and Old French reines ('straps'); Middle English rein meant a strap for controlling a horse, the sense kept in Modern English.

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