boundary

Definition of Boundary in English :

1. bound, boundary, bounds

the line or plane indicating the limit or extent of something

2. bound, boundary, edge

a line determining the limits of an area

3. bound, boundary, limit

the greatest possible degree of something

Example Sentences:
'what he did was beyond the bounds of acceptable behavior'
'to the limit of his ability'

WordNet Lexical Database for English. Princeton University. 2010.

Boundary

noun plural -ries

1.

something that indicates the farthest limit, as of an area; border

2. cricket

a.

the marked limit of the playing area

b.

a stroke that hits the ball beyond this limit

c.

the four runs scored with such a stroke, or the six runs if the ball crosses the boundary without touching the ground

nounWord forms: plural ˈboundaries

any line or thing marking a limit; bound; border

n. pl. bound·a·ries

1. Something that indicates a border or limit.

2. The border or limit so indicated.