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.
designed to solicit opinions or best-practices on a particular topic, with the goal of reaching community consensus.
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used for questions about whether something fits within the defined scope of this Stack Exchange site.
small addenda to each question or answer, intentionally limited in size and formatting and intended to prompt clarifying edits.
whenever you have any queries regarding the status of yours or any other users question or if you need any information/tips on how to frame a question
For questions concerning tags synonyms on both the main site and meta.
to dispute or discuss questions that have been closed.
posts (questions, answers, or comments) that have been deleted
for discussion of single-word-request questions asked on the main site.
Questions related to reference material found on the internet.