| Acronym | Meaning |
| TK | Terakelvin - Tokelau (ISO 3166 Digram) |
| TUI | Text User Interface (cf. CLI) |
| ZF | Zettafarad |
| YL | Yoctolitre |
| ZOPFAN | Zone Of Peace |
| FENS | Federation Of European Neuroscience Societies |
| CRC | Central RTI Component - Chemical Rubber Company - Christian Reformed Church - Control And Reporting Centre -Costa Rican Col›n (ISO 4217 Currency Code) -Cyclic Redundancy Check |
| LRS | Long Range Surveillance |
| EXREP | Expeditious Repair (SM&R Code) |
| SIN | Sinhalese Language (ISO 639-2 Code) |