In the context of web development and digital marketing, semantics refers to the use of HTML and other coding languages to convey meaning and structure to web content. Semantic elements clearly describe their purpose both to the browser and the developer, like using , , or tags in HTML. This practice enhances accessibility, search engine optimization (SEO), and maintainability of the code. In digital marketing, using semantic markup is crucial for ensuring that content is easily understood and indexed by search engines, improving the site's visibility and user experience.