| Subject | English | Chinese Taiwan |
| comp., MS | federated instant messaging | 同盟立即訊息 (Instant messaging with federated contacts) |
| comp., MS | instant messaging | 立即訊息 (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 | 立即訊息工作階段 (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 | 內部立即訊息 (Instant messaging with internal users) |