| Subject | English | Thesaurus |
| abbr., file.ext. | Data Compression Facility | DCF |
| abbr., HF.electr. | 1 dB gain compression | p1db (The 1 dB compression point (P1dB) indicates the power level that causes the gain to drop by 1 dB from its small signal value. tannin) |
| abbr., comp. | Low Complexity Lossless Compression for Images | LOCO-I (Vosoni) |
| comp., abbr. | Text Compression | TC |