A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.
The definition and conceptual refinement of tags with regard to extant or hypothetical questions.
The definition and conceptual refinement of tags with regard to other tags; the distinction and merging of tags categorically.
for questions about tag synonyms and for requests and suggestions to create tag synonyms.
The application and pertinence of a tag, or tags, to certain questions.