boundary

noun
UK: /ˈbaʊndri/
US: /ˈbaʊndri/

  1. A line that marks the edge of something.

    1. The fence shows the boundary of our yard. [ ] [ ]
    2. The river serves as a natural boundary between the two countries, preventing easy passage. [ ] [ ]

  2. A limit to what is acceptable or possible.

    1. Set a boundary for screen time for kids. [ ] [ ]
    2. As a journalist, he constantly tested the boundaries of free speech within his publications. [ ] [ ]

  3. In sports, the edge of the playing area.

    1. The ball went over the boundary for six runs. [ ] [ ]
    2. The fielder made a diving catch right at the boundary line to prevent a score. [ ] [ ]

Synonyms

border limit edge frontier perimeter margin restriction confine
boundary verb

  1. To form the boundary of something.

    1. The mountains boundary the west side. [ ] [ ]
    2. A thick hedge boundaries the property, providing privacy from the neighbors. [ ] [ ]

Frequently Asked Questions

The word "boundary" in English means: A line that marks the edge of something., A limit to what is acceptable or possible., In sports, the edge of the playing area..

The phonetic transcription of "boundary" is /ˈbaʊndri/ in British English and /ˈbaʊndri/ in American English. Click the 🔊 button to hear both pronunciations.

Synonyms for "boundary": border, limit, edge, frontier, perimeter, margin, restriction, confine.

Example usage of "boundary": "The fence shows the boundary of our yard.". More examples on the page.