| Subject | English | German |
| comp., MS | federated instant messaging | Verbundpartnerchat (Instant messaging with federated contacts) |
| comp., MS | instant messaging | Chat (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., net. | instant messaging | Sofortnachrichtendienst |
| law, ADR | instant messaging | Programme für schriftliche Unterhaltungen in Echtzeit |
| comp., MS | instant messaging session | Chatsitzung (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 | instant messaging IM window | Chatfenster (The window that is displayed when the user is in any type of conversation. This window displays the list of conversation window participants, the conversation content for instant messaging and video conversations, and commands and controls for managing the conversation) |
| comp., MS | internal instant messaging | interner Chat (Instant messaging with internal users) |