| Subject | English | Estonian |
| comp., MS | compression exclusion list | tihendamise väljajätuloend (A list of files that are not compressed when capturing an image using ImageX. Some files do not shrink in size when compressed. When capturing an image, you can identify these files to ImageX to save time. These files will still be captured, but ImageX will not attempt to compress them) |
| mech.eng. | compression ignition engine | diiselmootor |
| IT | compression of information | informatsioonitihendus |
| IT | compression of information | infotihendus |
| transp., mil., grnd.forc., mech.eng. | compression retarder | mootorpidur |
| forestr. | compression wood | ränipuit |