| Subject | English | Irish |
| commun. | European Radio-Messaging System | an Córas Eorpach um Chur Teachtaireachtaí Raidió |
| comp., MS | Messaging Application Programming Interface | Comhéadan Feidhmchlár Cur Teachtaireachtaí (A messaging architecture that enables multiple applications to interact with multiple messaging systems across a variety of hardware platforms. MAPI is built on the Component Object Model (COM) foundation) |
| comp., MS | Windows Messaging | Cur Teachtaireachtaí Windows (An app that facilitates SMS and instant messaging) |