The document describes 7 different communication contexts: 1. Intrapersonal communication occurs when self-evaluating interactions. 2. Mass communication transfers messages through mediated systems to large audiences. 3. Interpersonal communication allows for speaking and listening between two or more people. 4. Dyadic communication occurs between two individuals. 5. Public communication can reach billions but also allow individual conversations. 6. Small group communication happens when a few people discuss or chat together. 7. Public communication addresses a large number of people who can directly respond.