border - definition and synonyms

noun [countable] 

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  1. 1
    the official line separating two countries or regions
    border between:

    the border between Hungary and Romania

    border with:

    Iraq’s northern border with Turkey

    across/over the border:

    Thousands of refugees were fleeing across the border.

    cross the border:

    You can’t cross the border without a passport.

    close/seal a border:

    Troops have sealed the border in an effort to catch the guerrillas.

    1. a.
      the area close to a border
      on the border:

      a town on the Canadian border

    2. b.
      [only before noun] close to or relating to a border

      border guards

      the border town of Venlo

  2. 2
    a band or pattern around the edge of something, especially for decoration

    cotton sheets with a lace border

  3. 3
    a narrow area at the edge of a lawn or garden path, with flowers and other small plants in it
  4. 4
    the land around the edge of something

    Rushes grew on the borders of the lake.