- 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).
Origin of boundary
Related Words for boundaryperimeter, barrier, borderline, frontier, confines, edge, horizon, line, border, frame, circumscription, rim, radius, verge, mete, pale, brink, borderland, ambit
Examples from the Web for boundary
Contemporary Examples of boundary
First you have to convince people to accept your version of the boundary between law and politics.A Reminder: Our Justices are Politicians in Robes
November 13, 2014
We need to take a razor and make a boundary in the shaving foam, people.Leo, the Beard Has to Go: When a Man’s Facial Hair Reaches Crisis Point
September 22, 2014
We also need to cross the boundary between environmental and non-environmental issues.Green Politics Has to Get More Radical, Because Anything Less Is Impractical
April 26, 2014
What it cannot do is cross that boundary—not a geographical boundary for once—beyond which a democratic state has no business.A Hebrew Democratic State for All Its Citizens
October 3, 2013
My life goal is the expansion of human knowledge, and the elimination of the earth-moon system as the boundary of human influence.Bradley Manning’s Political Dreams: New Biography of Accused WikiLeaker
May 2, 2012
Historical Examples of boundary
They are like explorers who should mistake a boundary for the interior of a continent.
They are crossing the boundary between the first childhood and the second.
The seventh of these hath a bough which shoots over the boundary wall.Micah Clarke
Arthur Conan Doyle
Right ahead was a stone marker which he knew marked the boundary of 150 Nevada.Louisiana Lou
William West Winter
The misfortune then was that no boundary stones could be found.Fruitfulness
- 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