| Acronym | Meaning |
| PTO | Patent & Trademark Office - Please Turn Over |
| NAACP | National Association For The Advancement Of Colored People (N Double-A CP) |
| HW | Hardware -High Water (nautical Charts) |
| USB | Universal Serial Bus |
| WHI | Women's Health Initiative |
| NY | Chichewa Language (ISO 639-1 Code) |
| G1 | Assistant Chief-of-Staff |
| MWI | Malawi (ISO 3166 Trigram) |
| CLEC | Competitive Local Exchange Carrier |
| ROS | Reactive Oxygen Species |