Chat may refer to: Conversation Casual conversation. Online chat (synchronous conferencing) in an internet chat room or instant messaging system Bluechat and Wifichat. SMS chat. Other uses Chat (ppp), an automated conversational script with a modem. CHAT, an abbreviation of: Choosing Healthplans All Together, the name given to a simulation exercise in which players decide which benefit types they'd like to include in their health insurance package, and what level of service ) they pri… (More on Chat)