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Boundary vs Borderline - What's the difference?

boundary | borderline |

As nouns the difference between boundary and borderline

is that boundary is the dividing line or location between two areas while borderline is a boundary or accepted division; a border.

As an adjective borderline is

nearly; not clearly on one side or the other of a border or boundary, ambiguous.

boundary

English

Noun

(boundaries)
  • The dividing line or location between two areas.
  • *
  • *:So this was my future home, I thought!Backed by towering hills, the but faintly discernible purple line of the French boundary off to the southwest, a sky of palest Gobelin flecked with fat, fleecy little clouds, it in truth looked a dear little city; the city of one's dreams.
  • (cricket) An edge or line marking an edge of the playing field.
  • (cricket) An event whereby the ball is struck and either touches or passes over a boundary (with or without bouncing), usually resulting in an award of 4 (a four) or 6 (a six) runs respectively for the batting team.
  • (topology) (of a set) the set of points in the closure of a set S, not belonging to the interior of that set.
  • Derived terms

    * boundary umpire * boundary rider

    See also

    * border * confine * frontier * fladry

    borderline

    English

    Adjective

    (en adjective)
  • nearly; not clearly on one side or the other of a border or boundary, ambiguous.
  • He is borderline hypoglycemic and needs to monitor his sugar intake.
    I would rather hire a talented layman than a university graduate with borderline qualifications.
  • Showing bad taste.
  • Your borderline remarks about my aunt's dress destroyed my evening.
  • Exhibiting borderline personality disorder.
  • Derived terms

    * borderline personality disorder

    Noun

    (en noun)
  • A boundary or accepted division; a border.
  • She lives on the borderline between reality and madness.