The definition of a boundary is a line or something else that marks a limit or border.
A margin of superiority; an advantage:
The districts surrounding a town or city; suburbs or outskirts
The utmost limit; the maximum:
A projecting rim or edge, especially around the bottom of a hat.
The circumference is defined as the distance around something round or rounded, especially the distance around the edge of a circle.
A portion of space having length and breadth but no thickness.
A conventional two-lobed representation of the heart, usually colored red or pink.
The middle part of the body; waist
A journey made on such a path or route.
An enclosed area
An ornamental strip of flowers or shrubs along the edge of a garden, walk, etc.
An indefinite area intermediate between two qualities or conditions:
The bank, esp. when steep, of a river or other body of water
(Rock climbing) Technique involving the placement of the edge of the climbing shoe on a sharp hold.
An edge and the area immediately adjacent to it; a border.
The edge, brink, or margin (of something)
the outside boundary or surface of something
Districts remote from the center or midst, as of a city; outlying regions
Find another word for periphery. In this page you can discover 29 synonyms, antonyms, idiomatic expressions, and related words for periphery, like: boundary, limit, edge, environs, borderland, outside, ambit, brim, circumference, edges and rim.