A frontier is a political an geographical term referring to areas near or beyond a boundary, or of a different nature.

Trivia about frontier

  • In 1893, as it was disappearing, F.J. Turner wrote a famous essay on "The Significance of" it "in American History"
  • Accepting his party's nomination, JFK said, "We stand today on the edge of a new" one of these
  • Space is said to be the final one
  • This airline is "a whole different animal"