| Subject | English | French |
| comp., MS | federated instant messaging | messagerie instantanée avec contacts fédérés (Instant messaging with federated contacts) |
| comp., MS | instant messaging | MI, Mess. instant., messagerie instantanée (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 | messagerie instantanée (Pertaining to a message sent in real time through a network to a private chat area) |
| social.sc., commun. | instant messaging | messagerie instantanée |
| comp., MS | instant messaging session | conversation par messagerie instantanée (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) |