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boundary - definition and synonyms


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noun [countable] boundary pronunciation in British English /ˈbaʊnd(ə)ri/
Word Forms
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  1. 1
    something such as a line on a map that marks where one area of land ends and another begins
    a proposal to redraw the city boundary
    Akbar extended the boundaries of his empire in the north and to the south.
    boundary with: Estonians and Latvians began to query the status of their boundaries with Russia.
    1. a.
      a physical object such as a wall or fence that marks the limits of an area
      a boundary fence/wall
      boundary between: The lane once formed the boundary between the two villages.
    See also border1
  2. 2
    [usually plural] the limits of an activity or experience
    a community in which class boundaries are very clearly drawn
    push back/extend the boundaries of something: new research that pushes back the boundaries of genetic science
    cut across boundaries: The party’s support cuts across religious boundaries (=is not influenced by differences among religions).
    1. a.
      an imaginary point separating two different qualities, ideas etc
      boundary between: The boundary between fact and fiction in her writing is often blurred.


a meal served in the evening which consists of foods traditionally eaten at breakfast

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