A "tab" is a user interface element that allows users to navigate between different sections of content within a software application or website. Tabs are typically displayed as labeled buttons or links, making it easy to switch between various categories or pages without reloading the entire interface. This design enhances user experience by organizing information in a compact and accessible manner. In many applications, such as web browsers and document editors, tabs help users manage multiple tasks simultaneously. For example, in a web browser like Google Chrome, users can open multiple tabs to view different websites at once, improving efficiency and multitasking capabilities.