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.
Indicates that erroneous reported behavior cannot be reproduced by the developers, or can no longer be reproduced by anyone.
for questions that discuss whether a proposal is a valid proposal or not.
Dedicated domain name for a new Stack Exchange Site
Indicates that a change in functionality has been considered and received positively, and work on it is either in progress, or will begin soon.
currently under consideration, or needs further investigation.