As a general reminder, when you create a new tag (by tagging an entry with a tag that doesn’t exist yet), please try to write a description for that new tag. Otherwise it might be misunderstood and misused by others. Having a description also makes it easier for moderators to determine whether a tag is appropriate and useful. Generally, an external reference such as link to a wikipedia article is enough. Alternatively, you can write a few words about what the tag is intended for. Of course some tags are self-explanatory, and should be obvious even without a description, but it’s better to make sure.