# Attribute

An attribute is a field that is used to store data within
an item.

Attributes represent the highest level data component
within an item in a file. An item can contain any number of attributes,
each of which can contain any number of values, which in turn can
be composed of any number of subvalues.

## See also

- [Attribute mark](https://d3codex.com/definitions/attribute-mark/)
- [Dictionaries](https://d3codex.com/definitions/dictionaries/)
- [Element, data](https://d3codex.com/definitions/element-data/)
- [File-defining items](https://d3codex.com/definitions/file-defining-items/)
- [Metacharacters](https://d3codex.com/definitions/metacharacters/)
- [Retrieval of items from files](https://d3codex.com/access/retrieval-of-items-from-files/)
- [Subvalue](https://d3codex.com/definitions/subvalue/)
- [ud command](https://d3codex.com/tcl/ud-command/)
- [Value](https://d3codex.com/definitions/value/)

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Source: https://d3codex.com/definitions/attribute/ - part of the D3Codex reference.