The acronym RSS stands for Really Simple Syndication, a web feed format that enables users to access updates to websites in a standardized format. RSS allows content publishers to syndicate information automatically, providing subscribers with new content updates. It is commonly used for distributing news articles, podcasts, and blog posts, enabling users to receive real-time updates through aggregators or readers. RSS enhances the user experience by allowing quick access to relevant content, reducing the need to visit multiple websites.