# Definition:Distance

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## Disambiguation

This page lists articles associated with the same title. If an internal link led you here, you may wish to change the link to point directly to the intended article.

**Distance** may refer to:

- Metric spaces:
- A distance function in a measure defining a metric space.
- The distance between sets is the minimum distance between elements in two subsets of a metric space.

- Geometry:
- The distance between two points $A$ and $B$ is the length of a line segment joining $A$ and $B$.
- The distance between two lines $L_1$ and $L_2$ in ordinary space is the length of the shortest line segment joining $L_1$ and $L_2$.
- The angular distance between two points as measured from a common reference point.

- Information theory:
- The Hamming distance between two codewords of a given linear code is the number of corresponding terms which are different between those two codewords.