Edge is understood as the limit that an object or figure can have and that marks the end of its surface in relation to that of the external environment. The border is generally represented by a line (which can be straight, oblique, wavy, round, etc.) and which can also vary in thickness, length, color or layout. The main function or objective of an edge is, then, the marking of the space where the figure or object in question ends, although in some cases it can also serve as a container element for what remains inside the figure.
The term 'edge' can be applied in many different ways, both in phrases or expressions and with different more or less specific meanings. In this sense, one of the most common ways to use it is when referring to the boundary or border of a region. Here, an edge is something definitively and clearly marked, although some sections of the region may be more easily passable or traversable.
Territorial borders can be marked through some natural element (such as a mountain range, a river, a sea or a valley), as well as through artificial creations (routes, roads, artificial boundaries, etc.). In many cases, the establishment of territorial boundaries can lead to significant conflicts between regions, nations and countries.
The 'edge' can also be used to talk about crisis situations when 'being on the edge' means being on the edge. This can be reproduced for example in medical spaces, such as when it is said for example 'to be on the verge of catching a cold', in moments of danger, such as when it is argued that someone 'is on the verge of being attacked', etc. In all these cases, the word edge represents being at the most extreme point of the situation, almost facing what it means to fall outside of one's own space.
