something that indicates bounds or limits; a limiting or bounding line.
Also called frontier. Mathematics. the collection of all points of a given set having the property that every neighborhood of each point contains points in the set and in the complement of the set.
Cricket. a hit in which the ball reaches or crosses the boundary line of the field on one or more bounces, counting four runs for the batsman.
Compare six (def 5).
Contemporary Examples

The Gregory Brothers and the Rise of the Remix Video Jackie Snow February 3, 2011
What the Stars Hold for Your Week Starsky + Cox July 7, 2011
The Last Erotic Massage Arianne Cohen May 20, 2009
Sacha Baron Cohen and the Top 8 Saddam Hussein Spoofs The Daily Beast Video January 20, 2011
Too Soon? Jokes That Get People Fired Lloyd Grove March 15, 2011

Historical Examples

Louisa Of Prussia and Her Times Louise Muhlbach
A Treatise on Parents and Children George Bernard Shaw
Digging for Gold R.M. Ballantyne
Phaedo Plato
The Romance of a Great Store Edward Hungerford

noun (pl) -ries
something that indicates the farthest limit, as of an area; border

the marked limit of the playing area
a stroke that hits the ball beyond this limit
the four runs scored with such a stroke, or the six runs if the ball crosses the boundary without touching the ground


Read Also:

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  • Boundary-condition

    a stated restriction, usually in the form of an equation, that limits the possible solutions to a differential equation. boundary condition (boun’də-rē) Mathematics The set of conditions specified for the behavior of the solution to a set of differential equations at the boundary of its domain. Boundary conditions are important in determining the mathematical solutions […]

  • Boundary-layer

    the portion of a fluid flowing past a body that is in the immediate vicinity of the body and that has a reduced flow due to the forces of adhesion and viscosity. noun the layer of fluid closest to the surface of a solid past which the fluid flows: it has a lower rate of […]

  • Boundary-line

    boundary (def 1). partition line. Historical Examples A System of Practical Medicine By American Authors, Vol. II Various Charles Sumner; His Complete Works, Volume XI (of 20) Charles Sumner Round About the Carpathians Andrew F. Crosse mile Verhaeren Stefan Zweig Belford’s Magazine, Vol II, No. 10, March 1889 Various Red Pottage Mary Cholmondeley Chambers’s Twentieth […]

  • Boundary-peak

    a peak in SW Nevada, in the White Mountains, near the California border: highest elevation in Nevada. 13,143 feet (4006 meters).

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