In regards to digital technology, a chat is an online real-time conversation. A chat can also be defined as an informal in-person, phone, LAN or WAN conversation
In reference to the Internet, a chat takes place in a chat room. Someone types a message on an electronic device and others are able to read and respond to the message in real time. Companies often offer the ability to converse with tech support and customer service agents via these facilities. Chats can be between two people or a much larger group. Chat systems often allow users in a group chat to send private messages to each other.