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 regarding the "not an answer" flagging option on answers.
For questions about the user named Community ♦ present on Stack Exchange sites.
currently under consideration, or needs further investigation.
Commonly used terms throughout SuperUser
For questions about the Winter Bash (or holiday hats) to celebrate the end of the year.