This document discusses various forms of oral communication. It begins by defining oral communication as the process of generating meanings through verbal and non-verbal messages across contexts, cultures, channels and media. It then describes several forms of oral communication in more detail, including intrapersonal communication (self-talk), interpersonal communication (between individuals), small group communication, public communication (speaking to audiences), mass communication (through media), corporate communication (within organizations), and intercultural communication (between diverse cultures). The document emphasizes that understanding different communication practices is important for intercultural harmony.