A "heading" is a title or label that introduces a section of text, helping to organize content and guide readers. It typically appears in a larger or bolder font than the surrounding text, making it stand out. Headings are commonly used in documents, articles, and books to break up information into manageable parts. In digital content, such as websites and blogs, headings are essential for search engine optimization (SEO). They help search engines like Google understand the structure and main topics of a page. Properly formatted headings improve user experience by allowing readers to quickly find the information they need.