Definition of boundary - WordReference.com Dictionary

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Adapted From: WordNet 2.0 Copyright 2003 by Princeton University. All rights reserved.

boundary
A	noun
	1	limit, bounds, boundary
			the greatest possible degree of something; "what he did was beyond the bounds of acceptable behavior"; "to the limit of his ability"
		Category Tree: abstraction ╚attribute ╚property ╚magnitude ╚extent ╚limit, bounds, boundary ╚verge; brink ╚utmost; uttermost; maximum; level best ╚thermal barrier; heat barrier ╚knife-edge
	2	boundary, bound, bounds
			the line or plane indicating the limit or extent of something
		Category Tree: entity ╚location ╚region; part ╚extremity ╚boundary, bound, bounds ╚end ╚edge; border ╚city line ╚county line ╚district line ╚bourn; bourne ╚boundary line; border; borderline; delimitation; mete ╚heliopause ╚frontier ╚hairline
	3	boundary, edge, bound
			a line determining the limits of an area
		Category Tree: abstraction ╚attribute ╚shape; form ╚line ╚boundary, edge, bound ╚thalweg ╚lower bound ╚upper bound ╚brink; threshold; verge ╚periphery; fringe; outer boundary ╚margin; border; perimeter ╚rim