What is the meaning of foreign?

adjective

• Of concern to or concerning the affairs of other nations (other than your own. )
  • usage: "foreign trade"; "a foreign office"
• Relating to or originating in or characteristic of another place or part of the world.
  • usage: "foreign nations"; "a foreign accent"; "on business in a foreign city"
  • synonyms: strange
• Not contained in or deriving from the essential nature of something.
  • usage: "an economic theory alien to the spirit of capitalism"; "the mysticism so foreign to the French mind and temper"; "jealousy is foreign to her nature"
  • synonyms: alien
• Not belonging to that in which it is contained; introduced from an outside source.
  • usage: "water free of extraneous matter"; "foreign particles in milk"
  • synonyms: extraneous