boundary Definition

a line that marks the limits of an area; a dividing line.

Using boundary: Examples

Take a moment to familiarize yourself with how "boundary" can be used in various situations through the following examples!

  • Example

    The fence marks the boundary between our property and theirs.

  • Example

    The river forms a natural boundary between the two countries.

  • Example

    The boundary of the park is clearly marked with signs.

  • Example

    We need to establish some boundaries in our relationship.

boundary Synonyms and Antonyms

Antonyms for boundary

Phrases with boundary

  • set boundaries

    establish limits or rules for oneself or others in order to maintain healthy relationships or behavior


    It's important to set boundaries with your coworkers to avoid being taken advantage of.

  • push the boundaries

    to challenge or go beyond established limits or rules


    The artist's work pushes the boundaries of what is considered traditional art.

  • boundary issues

    problems or difficulties in establishing or respecting personal or professional limits


    She has boundary issues and often oversteps other people's boundaries without realizing it.


Summary: boundary in Brief

The term 'boundary' [ˈbaʊnd(ə)ri] refers to a line marking the limits of an area or a dividing line. It can be a physical marker like a fence or a natural feature like a river. 'Boundary' is also used in phrases like 'set boundaries' to establish limits for oneself or others, and 'push the boundaries' to challenge established limits.

How do native speakers use this expression?