| Subject | English | Korean |
| comp., MS | federated instant messaging | 연결된 메신저 대화 (Instant messaging with federated contacts) |
| comp., MS | instant messaging | 인스턴트 메시징 (Pertaining to a message sent in real time through a network to a private chat area) |
| comp., MS | instant messaging | 인스턴트 메시징, 메신저 대화 (A method of real-time communication over the Internet in which a sender types a message to one or more recipients and the recipient immediately receives the message in a chat area) |
| comp., MS | instant messaging session | 인스턴트 메시징 세션 (A real-time communication over the Internet in which a sender types a message to one or more recipients and the recipient(s) immediately receives the message in a pop-up window) |
| comp., MS | internal instant messaging | 내부 메신저 (Instant messaging with internal users) |