| Acronym | Meaning |
| BDU | Battle-Dress Uniform |
| DDOS | Distributed Denial Of Service |
| NAAD | North American Air Defense |
| PPLI | Precise Participant Location & Identification |
| SEN | Senegal (ISO 3166 Trigram) -Small Extension Node |
| PAYD | Pay As You Drive |
| GMBH | Gesellschaft Mit Beschr?nkter Haftung (German |
| HF | Hafnium |
| MEI | Matsushita Electric Industrial Co. |
| PH | Parts Of Hydrogen (acidity/alkalinity Index) - Picohenry |