Meta tags are tags which describe something other than the question's content--such as the author's skill level, motivation, or current take on it. Alternatively, they may be ill-defined concepts which make consistent application of the tag difficult or impossible.
Meta tags are tags which describe something other than the question's content – such as the author's skill level, motivation, or current take on it. Alternatively, they may be ill-defined concepts which make consistent application of the tag difficult or impossible.
See The Death of Meta Tags for the official party line on meta tags, and the broader category of "dependent" tags.
For questions about tags on meta sites, such as when a specific required tag should be used, do not use this tag - instead use the tags tags and either meta or per-site-meta depending on whether the question is about tag usage on Meta Stack Exchange or per-site metas. (Questions about tag usage on an individual per-site meta should be asked on that meta site itself, not here.)
