| Acronym | Meaning |
 | NNO | Norwegian Nynorsk Language (ISO 639-2 Code) |
| NDAA | U.S. National Defense Authorization Act |
| PD | Per Diem (Latin: (calculated) By The Day) - Point Of Departure - Police Department - Postal District - Potential Difference - Principal Deputy - Public Domain |
| IT | Italian Language (ISO 639-1 Code) |
| TL | Team Leader -Teralitre - Timor-Leste (ISO 3166 Digram) -ThermoLuminescence |
| S | Siemens - South - Sulfur |
| FXX | Metropolitan France (ISO 3166 Trigram; Obsolete 1997) |
| MMOR | Master Of Management In Operations Research |
| TBBPA | TetraBromoBisPhenol-A |
| GW | Games Workshop - Germ Warfare -Gigawatt -Guided Weapon -Guinea-Bissau (ISO 3166 Digram) |
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