| Acronym | Meaning |
 | SDSS | Sloan Digital Sky Survey |
| ECL | Emitter Coupled Logic (electronics) |
| IAAL | I Am A Lawyer |
| USGS | United States Geological Survey |
| TL | Tagalog Language (ISO 639-1 Code) |
| MRT | Mauritania (ISO 3166 Trigram) |
| AFAICT | As Far As I Can Tell |
| ADIZ | Air Defence Identification Zone |
| FWIW | For What It's Worth |
| PDA | Personal Digital Assistant - Predicted Drift Angle - Public Display Of Affection - Push-Down Automaton |
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