Dictionary > English Dictionary > Definition, synonym and antonym of boundary
Meaning of boundary by Wiktionary Dictionary



    Old French, from Latin


    • ( UK ) IPA: /baʊndɹi/ X-SAMPA: /baUndri/
    • Rhymes: -aʊndɹi


    boundary ( plural: boundaries )

    1. The dividing line or location between two areas .
    2. ( cricket ) An edge or line marking an edge of the playing field .
    3. ( cricket ) An event whereby the ball is struck and either touches or passes over a boundary ( with or without bouncing ), usually resulting in an award of 4 ( a four ) or 6 ( a six ) runs respectively for the batting team .
    4. ( topology ) ( of a set ) the set of points in the closure of a set S, not belonging to the interior of that set .

    Derived terms

    Related terms

    External links

    • boundary in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913
    • boundary in The Century Dictionary, The Century Co., New York, 1911

Explanation of boundary by Wordnet Dictionary


    1. the greatest possible degree of something

    2. the line or plane indicating the limit or extent of something

    3. a line determining the limits of an area

    Definition of boundary by GCIDE Dictionary


    1. Boundary n.; pl. Boundaries ( ) [From Bound a limit; cf. LL. bonnarium piece of land with fixed limits.] That which indicates or fixes a limit or extent, or marks a bound, as of a territory; a bounding or separating line; a real or imaginary limit.

      But still his native country lies

      Beyond the boundaries of the skies. N. Cotton.

      That bright and tranquil stream, the boundary of Louth and Meath. Macaulay.

      Sensation and reflection are the boundaries of our thoughts. Locke.

      Syn. -- Limit; bound; border; term; termination; barrier; verge; confines; precinct. Bound, Boundary. Boundary, in its original and strictest sense, is a visible object or mark indicating a limit. Bound is the limit itself. But in ordinary usage the two words are made interchangeable.