Boundary
//ˈbaʊndəɹi// noun
noun ·Common ·High school level
Definitions
Noun
- 1 The dividing line or location between two areas.
"So this was my future home, I thought![…]Backed by towering hills, the but faintly discernible purple line of the French boundary off to the southwest, a sky of palest Gobelin flecked with fat, fleecy little clouds, it in truth looked a dear little city; the city of one's dreams."
- 2 the greatest possible degree of something wordnet
- 3 The bounds, confines, or limits between immaterial things (such as one’s comfort zone, privacy, or professional sphere and the realm beyond). figuratively, in-plural, often
"I didn’t mean to push the boundaries by sending my boss a message on Saturday night."
- 4 the line or plane indicating the limit or extent of something wordnet
- 5 An edge or line marking an edge of the playing field.
Show 4 more definitions
- 6 a line determining the limits of an area wordnet
- 7 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 (four) or 6 (six) runs respectively for the batting team.
"Travis hit a boundary to seal the match on the last ball of the over."
- 8 (of a set) The set of points in the closure of a set S, not belonging to the interior of that set.
- 9 Commission paid by a bus or jeepney driver to a public transportation operator for taking passengers, or the excess collected fares taken as daily wage. Philippines
Example
More examples"The Rhine is the boundary between France and Germany."
Etymology
From bound + -ary, Old French, from Latin.
Related phrases
More for "boundary"
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.