A messenger is a person or system that delivers messages or information from one place to another. This role can be found in various contexts, such as in business, where a messenger might carry documents, or in communication technology, where digital messengers facilitate instant messaging between users. In the digital world, a messenger often refers to applications like WhatsApp or Facebook Messenger, which allow users to send text, images, and videos instantly. These platforms have transformed how people communicate, making it easier to connect with others regardless of distance.