| Subject | English | Polish |
| IT | common communications network/common systems interface | wspólna sieć łączności / wspólny system połączeń |
| IT | common communications network/common systems interface | CCN/CSI |
| energ.ind. | European Network of Transmission System Operators | europejska sieć operatorów systemów przesyłowych |
| gen. | European Network of Transmission System Operators for Electricity | ENTSO energii elektrycznej |
| el. | European Network of Transmission System Operators for Electricity | europejska sieć operatorów systemów przesyłowych energii elektrycznej |
| gen. | European Network of Transmission System Operators for Gas | ENTSO gazu |
| energ.ind. | European Network of Transmission System Operators for Gas | europejska sieć operatorów systemów przesyłowych gazu |
| social.sc., IT, R&D. | European Statistical System networks | sieć europejskiego systemu statystycznego |
| gen. | European Statistical System networks | sieć ESS |
| gen. | European Statistical System networks | ESSnet |
| waste.man. | gravity sewage system network | sieć układu kanalizacji grawitacyjnej |
| environ. | International Reference Life Cycle Data System ILCD Data Network | sieci danych w ramach systemu ILCD |
| comp., MS | network basic input/output system | sieciowy system podstawowych operacji wejścia/wyjścia (An application programming interface (API) that can be used by programs on a local area network (LAN). NetBIOS provides programs with a uniform set of commands for requesting the lower-level services required to manage names, conduct sessions, and send datagrams between nodes on a network) |
| comp., net. | network file system | system plików sieciowych |
| comp., MS | network file system | sieciowy system plików (A distributed file system that allows users to access remote files and directories on a network as if they were local. NFS is compatible with Microsoft Windows and UNIX-based systems, including Linux and Mac OS X) |
| comp., net. | network operating system | system operacyjny sieciowy |
| construct. | system of engineering communication networks and services | sieć komunikacji inżynieryjnych |
| comp., MS | Systems Network Architecture | SNA (A network model devised by IBM to enable IBM products, including mainframes, terminals, and peripherals, to communicate and exchange data) |
| polit. | Systems Network Engineering and Architecture | Inżynieria i Architektura Sieci Informatycznych |
| comp., MS | username (The name by which a user is identified to a computer system or network. During the logon process, the user must enter the username and the correct password. If the system or network is connected to the Internet, the username generally corresponds to the leftmost part of the user's e-mail address (the portion preceding the | nazwa użytkownika |