What is the meaning of separation?

noun

• The state of lacking unity.
• Coming apart.
  • synonyms: breakup, detachment
• The distance between things.
  • usage: "fragile items require separation and cushioning"
  • synonyms: interval
• Sorting one thing from others.
  • usage: "the separation of wheat from chaff"; "the separation of mail by postal zones"
• The social act of separating or parting company.
  • usage: "the separation of church and state"
• The space where a division or parting occurs.
  • usage: "he hid in the separation between walls"
• The termination of employment (by resignation or dismissal. )
• Law) the cessation of cohabitation of man and wife (either by mutual agreement or under a court order. ()
  • synonyms: legal separation
• The act of dividing or disconnecting. .