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.
Microsoft's "Universal Windows Platform" (UWP) for app development.
Questions about displaying things with minimal latency, or apps that do so.
Locked posts can't be: Edited, Voted on, Commented on, Answered, nor Flagged with most flags. Use this for questions with how the API handles such posts, or for tools/apps/scripts that deal with lock…
Use for the Stylus or Stylish browser extensions. These customize the appearance of web-pages that you browse. That is, Stylish lets you "Theme" or "Skin" pages you visit by allowing you to overwr…
Applications that run on Linux natively or questions about using the API on the Linux platform.
a Q/A site in the Stack Exchange Network.
For scripts and applications that interact with the Stack Exchange Data Explorer (SEDE).
A script designed to run with the extensions Stylus, Stylish, etc. -- to alter the look of a site via CSS. A subset of, but not the same as, the [style] tag.
Pertains to features that require 10K reputation to access (The "Access To Moderator Tools" privilege).
For questions about using the Stack Exchange API to access Stack Overflow for Teams data. For general Stack Overflow for Teams questions, please visit Meta Stack Overflow.
For questions relating to the (accessible but not officially released) version 2.3 of the Stack Exchange API.
Apps that live in ... um, that thing in whichever corner of your screen, with all the icons in it.
its own meta site. Use this tag to help differentiate moderation questions from the usual Stack Apps post.