Meaning & Definition of word "Boundary"

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    Boundary

    /ˈbaʊndəri/

    noun:

    • 1. A line or boundary marking the limits of an area; a dividing line.
      • Example: The river serves as the natural boundary between the two countries.
    • 2. A limit of a subject or sphere of activity; a defining line.
      • Example: Setting clear boundaries in a relationship is essential for healthy communication.
    • 3. An edge or limit; a point beyond which something does not or may not extend.
      • Example: The researchers tested the boundaries of the theory with new evidence.
    • 4. A conceptual limit; constraints on behavior or action.
      • Example: In art, the boundary between creativity and madness can often be blurred.

    Etymology

    Late Middle English: from Old French ‘bonderie’, from the verb ‘bondir’ meaning ‘to surround’.

    Common Phrases and Expressions

    set boundaries:

    to establish limits in a situation or relationship.

    push the boundaries:

    to exceed or extend the limits of something.

    cross the boundary:

    to go beyond the accepted limits.

    Related Words

    border:

    A line separating two political or geographical areas.

    limit:

    The point or level beyond which something does not or may not extend.

    periphery:

    The outer limits or edge of an area or object.

    Slang Meanings of boundary

    Meaning: No man's land

    Example Sentence: The area between the two rival gangs was considered no man's land.

    Meaning: The edge

    Example Sentence: He was living on the edge when he decided to quit his job without a backup plan.