The term "link" has several meanings, depending on its context.
1) In general usage, a link is a connection or bond between two things. For example, one might say that there is a link between smoking and lung cancer. This means that there is an established relationship between the two variables- in this case, the act of smoking tobacco and the development of lung cancer.
2) In computer science, a "link" refers to a pointer or reference to another object within memory. For example, if one were to create a directory of files on their computer, each file would have an entry that contains its name, location, permissions, and other attributes. One of these attributes is the link - this allows you to point to another file (or folder) stored somewhere else in your system or network.
3) In web design, a "link" refers to a clickable element on a webpage that directs users to another page within the same website or an external site. This can be in the form of text, images, or other interactive elements such as buttons or links.
Overall, the term "link" generally means a connection between two things, whether it's a relationship, a pointer, or a clickable element on a webpage.