外がい界かい

noun, noun which may take the genitive case particle 'no'

outside world; external world; physical world

Refers to the world outside a particular enclosed space, system, or one's inner self. Often contrasted with 内界 (inner world) or used in philosophical, scientific, and everyday contexts.

See also: 内界

• 外がい界かいとの接せっ触しょくを断たつ。

  Cut off contact with the outside world.