• People with a passing knowledge of each other.
  • Neighbors
  • Classmates


  • A person with some proximity or common interests.
  • No emotional ties.
  • Co-workers.
  • Fans


  • Friends or partners in a particular activity.
  • Teammates.
  • Some limited emotional connection.


  • Persons united in a common goal or against a common enemy.
  • Often used with a military or political connotation.
  • Relationships tend to be limited in time.

Best Friend (BFF)

  • Strong interpersonal ties.
  • Emotional connection unlike any other.
  • Sharing of info and experiences.

Blood Brothers/Sister

  • Friendship based on a common experience of an extreme nature.
  • Soldier in combat.
  • Survivors of a plane crash.