What is the definition of context in communication?

The context of communication is generally thought of as a particular group of people communicating with each other in a given environment or situation. Group communication addresses communication among, within, and between groups. Interpersonal communication focuses on communication between two or more people. Organizational communication relates to internal and external communication methods of an organization. Health communication refers to the communication within a health care system, network, or among or between patients and providers.  Nonetheless, communication contexts may exist in different forms. That is, a health care organization may engage in group communication, interpersonal communication, organizational communication and health communication. 

Communication exists in a sort of feedback loop. Communication begins with the sender. It is then transmitted through a verbal or non-verbal method. The receiver then accepts and decodes the message. The receiver then provides feedback to the receiver, which may or may not indicate that the appropriate message was received.