| Subject | English | Irish |
| gen. | Afghan Compact | Comhshocrú na hAfganastáine |
| gen. | Afghanistan Compact | Comhshocrú na hAfganastáine |
| market., commun. | compact disc | CD |
| market., commun. | compact disc | dlúthdhiosca |
| comp., MS | compact disc | dlúthdhiosca (An optical storage medium for digital data) |
| comp., MS | compact disc player | seinnteoir dlúthdhioscaí (A device that reads the information stored on a compact disc. A compact disc player contains the optical equipment necessary for reading a disc's contents and the electronic circuitry for interpreting the data as it is read) |
| comp., MS | compact disc read-only memory | dlúthdhiosca cuimhne inléite amháin (A form of storage characterized by high capacity (roughly 650 MB) and the use of laser optics instead of magnetic means for reading data) |
| comp., MS | compact disc read-only memory | dlúthdhiosca cuimhne inléite amháin (A form of storage characterized by high capacity (roughly 650 MB) and the use of laser optics instead of magnetic means for reading data) |
| comp., MS | compact disc-recordable | dlúthdhiosca intaifeadta (A type of CD-ROM that can be written (only once) on a CD recorder and read on a CD-ROM drive) |
| comp., MS | compact disc-rewritable | dlúthdhiosca in-athscríofa (A type of CD on which files can be copied, erased, and replaced) |
| environ., energ.ind., el. | compact fluorescent lamp | dlúthsholas fluaraiseach |
| environ., energ.ind., el. | compact fluorescent lamp | DSF |
| comp., MS | compact row axis | ais dlúthaithe ró (A feature that enables the user to compact or collapse rows when viewing several levels of data) |
| nat.res. | compact weaver | fíodóir uaibhreach (Ploceus superciliosus) |
| life.sc. | compacted snow | sneachta balctha |
| econ. | fiscal compact | comhshocrú fioscach |