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.
For questions about the behavior and appropriate usage of tags, which are words used to categorize questions
Questions about the behavior or usage of tags, which are keywords or labels that categorize and group your question with other, similar questions.
Questions about tag synonyms (how they work, who can create them, etc).
Questions related to tag wikis or tag wiki excerpts, i.e. the descriptions of tags, including descriptions of how to use them.
used for determining the consensus meaning of commonly used words in questions.
About questions that have no up-voted or accepted answers.
Questions specific to up-votes.
Questions relating to user accounts on LL SE, and possibly across the StackExchange network.
Questions about the user interface elements (inputs, buttons, checkboxes, etc.) that make up Language Learning SE. For questions about the design of elements, use the design tag.
Questions about users (and user accounts) on LL SE. For questions specifically about user accounts, use the tag `user-accounts`.
Questions related to videos about LLSE, especially promotional videos and instructional videos.
Questions about the process by which users can vote to close a question.
For questions about peer voting, the primary means of reputation change and post ranking.
Questions related to Winter Bash, a celebration at the end of the year during which Stack Exchange participants can gain temporary holiday hats.
Questions related to Wintebash 2016, which ran from 19 December 2016 till 8 January 2017.