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A "tag wiki" is an editable page that briefly summarizes the topic of the tag and that may provide links to existing questions that are often useful to many people.

A "tag wiki" is an editable page that briefly summarizes the topic of the tag and that may provide links to existing questions that are often useful to many people.

Tag wikis are made of two parts:

  • The excerpt which is displayed on question lists and the tag hover menu. It is the part shown in the upper box on a tag wiki page.

    (If your question is primarily about the tag wiki excerpt, please also use the tag.)

  • The body which contains detailed information about a tag wiki.

When the excerpt is displayed there is a clickable item, usually labelled "info" that will cause the body to be displayed.

See also: What is a tag wiki? How do I write a good one?