Definition
A 'signal' is a sign or indication used to communicate information or a warning. It can be a gesture, sound, light, or any other medium that conveys a specific message. Signals are designed to be clear and easily understood, so they can promptly trigger a response. It helps to have distinct signals so that everything is clear. Think of traffic lights which give us signals while driving.π¦It can also be used figuratively to indicate a trend or development.