A measure of separation between locations or objects. In a metric space, distance is specified by a metric satisfying positivity, symmetry and the triangle inequality. The familiar straight-line separation in Euclidean space is Euclidean distance; other metrics can assign different distances to the same pair of points.
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Distance is a measure of the space between two points or objects. It can refer to the physical length or interval separating these points in various contexts, such as geography, physics, or everyday situations. Distance can be measured in various units, including meters, kilometers, miles, and feet, depending on the system of measurement being used. In a more abstract sense, distance can also refer to the degree of separation in non-physical contexts, such as emotional distance in relationships or conceptual distance in ideas.