What is the meaning of external?

noun

• Outward features.
  • usage: "he enjoyed the solemn externals of religion"

adjective

• Happening or arising or located outside or beyond some limits or especially surface.
  • usage: "the external auditory canal"; "external pressures"
• Coming from the outside.
  • usage: "extraneous light in the camera spoiled the photograph"; "relying upon an extraneous income"; "disdaining outside pressure groups"
  • synonyms: extraneous, outside
• From or between other countries.
  • usage: "external commerce"; "international trade"; "developing nations need outside help"
  • synonyms: international, outside
• Purely outward or superficial. "external composure"; "an external concern for reputation- A. R. Gurney, Jr.