| Subject | English | Polish |
| IT | common communications network/common systems interface | CCN/CSI |
| IT | Common system interface | CSI |
| gen. | European Union police mission undertaken in the framework of reform of the security sector SSR and its interface with the system of justice in the Democratic Republic of the Congo | misja policyjna Unii Europejskiej w zakresie reformy sektora bezpieczeństwa, mającej odniesienie do wymiaru sprawiedliwości w Demokratycznej Republice Konga |
| comp., MS | Extensible Firmware Interface system partition | partycja systemowa EFI (A small portion on a GUID partition table (GPT) disk that is formatted with the file allocation table (FAT) file system and contains the files necessary to start the computer and pass execution to an operating system which resides on another partition) |
| comp., MS | small computer system interface | Small Computer System Interface (A standard high-speed parallel interface defined by the American National Standards Institute (ANSI). A SCSI interface is used for connecting microcomputers to peripheral devices, such as hard disks and printers, and to other computers and local area networks (LANs)) |
| comp., MS | system-preferred interface language | język interfejsu preferowany przez system (The language that displays on a system when the user has not selected a user-preferred interface language) |