reins

/ษนeษชnz/
noun
  1. 1

    A strap or rope attached to a bridle or bit, used to control a horse, animal or young child.

  2. 2

    An instrument or means of curbing, restraining, or governing.

verb
  1. 1

    To direct or stop a horse by using reins.

  2. 2

    To restrain; to control; to check.

  3. 3

    To obey directions given with the reins.

noun
  1. 1

    (chiefly in plural) A kidney.

  2. 2

    The inward impulses; the affections and passions, formerly supposed to be located in the area of the kidneys.

noun
  1. 1

    The kidneys.

  2. 2

    The lower part of the back.

  3. 3

    The loins.

  4. 4

    The parts of a vault between the crown and the spring or abutment, including, and having especial reference to, the loading or filling behind the shell of the vault.

Source: https://en.wiktionary.org/wiki/rein, https://en.wiktionary.org/wiki/reins