confines

/K AA1 N F AY0 N Z/
verb
  1. 1

    To restrict; to keep within bounds; to shut or keep in a limited space or area.

  2. 2

    To have a common boundary; to border; to lie contiguous; to touch; followed by on or with.

noun
  1. 1

    The borders or limits of an area.

  2. 2

    Elements that restrain someone.

  3. 3

    The scope or range of a subject.

Source: https://en.wiktionary.org/wiki/confine, https://en.wiktionary.org/wiki/confines