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.
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.
Bots to run in Stack Exchange chatrooms
enter Stack Exchange posts, which supports a live preview of Markdown syntax.
a popup that lists available close reasons in order to vote to close a question. This tag is only for questions about the dialog itself.
for questions about low quality questions and answers that appear in the Low Quality Posts review queue.
Refers to user accounts either generically, or across the network.
For general questions about the Winter Bash (or holiday hats) to celebrate the end of the year.
for questions about the official mouthpiece of the Stack Exchange empire.
used in requests for adding one or more tags to the blacklist, preventing them from ever being recreated.
for questions specific to upvotes, the community's way of telling peers that their content was clear and helpful. Up-votes on the meta sites may have different meanings.
Relating to the discussion and controversy around questions that are explicitly stated as, presumed, or suspected to be homework questions (i.e. those given to a student in a formal course of study).
a flag that can be applied to answers (and sometimes questions) which lowers the barrier for editing and prevents any rep gain/loss from voting.
referring to the process of identifying and closing questions that are exact duplicates of another question.
the tag to use for any questions related to deleted answers specifically.
For questions regarding locked posts and locking functionality. Diamond moderators can lock a question or answer.
Nuggets that sit below a post to either reason its locked nature or a call for clarity in answers.
Indicates a post used for submitting and voting on Community Promotion Ads.
User retention refers to keeping a user who has come to our site, coming back again and again.
Cross-posting refers to posting the same question on multiple websites.
Questions about sizes and other quantities of Stack Exchange sites, e.g. number of questions, GB/day transferred, etc.
for questions about the user profile page, which contains a list of all the questions, answers, and an audit trail of the user's activity on the site.
For questions about the images used in your own posts.
for questions about the favorite question feature or the favorite tags feature.
about the top 7 question list on the Stack Exchange blog.