| Subject | English | Irish |
| transp., mil., grnd.forc., mech.eng. | approval of compression ignition C.I. engine | cineálcheadú innill adhainte chomhbhrú |
| mech.eng. | compression ignition engine | inneall adhainte comhbhrú |
| gen. | compression ignition engine | inneall díosail |
| transp., mil., grnd.forc., mech.eng. | compression retarder | coscán innill |
| transp. | compression rib | easna chomhbhrú |
| earth.sc. | compression shock | turraing chomhbhrú |
| comp., MS | compression utility | áirge comhbhrúite (A software program that reduces a file's size for storage on a disk. If a compressed file is too large to fit onto a single disk, the compression utility copies it onto multiple disks) |
| earth.sc. | compression wave | tonn chomhbhrú |
| earth.sc., mech.eng. | external compression intake | aer-iontógáil de chomhbhrú seachtrach |
| earth.sc., mech.eng. | external compression intake | aer-iontógáil comhbhrú sheachtraigh |
| transp., tech., law | spring compression chamber | cuasán comhbhrúite sprionga |