| Acronym | Meaning |
| FS | Femtosecond |
| LJJ | Lord Justices Of Appeal |
| TKL | Tokelau (ISO 3166 Trigram) |
| CRT | Cardiac Resynchronization Therapy - Cathode Ray Tube - Chinese Remainder Theorem |
| FMCA | Federal Magistrates' Court Of Australia (used For Citing Decisions Of The FMC Other Than Family Law Decisions) |
| PAO | Public Affairs Officer |
| LSST | Large Synoptic Survey Telescope |
| LAK | Laotian Kip (ISO 4217 Currency Code) |
| NECTEC | National Electronics And Computer Technology Center (Thailand) |
| KAF | Kandahar Air Field |