| Acronym | Meaning |
| PIG | Pipeline Inspection Gauge |
| GZ | Gaza Strip (FIPS 10-4 Territory Code) -Ground Zero |
| NCP | Net Contracted Purchases |
| PW | Palau (postal Symbol; ISO 3166 Digram) - Petawatt |
| DWI | Dance With Intensity - Danish West Indies - Diffusion-weighted Imaging - Direct Water Injection - Disaster Welfare Inquiry - Drinking Water Inspectorate - Driving While Intoxicated/Impaired |
| CCITT | Comit? Consultatif International T?l?phonique Et T?l?graphique (French For International Telegraph And Telephone Consultative Committee |
| ET | Ethiopia (ISO 3166 Digram; FIPS 10-4 Country Code) - Exatesla -Extra Terrestrial |
| WLOG | Without Loss Of Generality (see WOLOG) |
| IMPACT | International Medical Products Anti-Counterfeiting Taskforce |
| PNAC | Project For The New American Century |