A "link" is a connection between two or more items, often used in the context of the internet. It allows users to navigate from one webpage to another by clicking on highlighted text or images. Links are essential for browsing, as they help organize information and provide easy access to related content. In a broader sense, a link can refer to any relationship or connection between different entities, such as people, ideas, or objects. For example, in social networks, a link can represent a friendship or connection between users, while in research, a link might connect related studies or findings.