A "keypress" refers to the action of pressing a key on a keyboard or similar input device. This action generates a signal that the computer interprets as a specific character or command. Keypresses are fundamental for typing text, executing commands, and navigating software applications. In computing, keypress events can be detected and processed by programming languages and frameworks, allowing developers to create interactive applications. For example, in web development, JavaScript can capture keypress events to enhance user experience, such as validating input or triggering actions when specific keys are pressed.