The term "fetch" commonly refers to the action of retrieving or bringing back an object. In everyday language, it is often associated with dogs, which are trained to fetch items like balls or sticks. When a person throws an object, the dog runs to get it and returns it to the thrower. In computer programming, "fetch" describes the process of retrieving data from a server or database. For example, when a web application requests information from a server, it uses a fetch command to obtain the necessary data, allowing users to see updated content on their screens.