Source: wikibot/w21
= W21
{wiki=W21}
W21 could refer to multiple concepts or products depending on the context. Here are a few possibilities: 1. **World 21**: A shorthand for various global initiatives or organizations focused on sustainability, social issues, or development goals. 2. **W21 Software**: In technology, it might refer to a specific software version or tool, particularly in the context of programming or software development.