| Acronym | Meaning |
| IMSA | Illinois Mathematics And Science Academy - International Mind Sports Association - International Motor Sports Association |
| F | Farad - Fluorine |
| GJ | Gigajoule - Grenada (FIPS 10-4 Country Code) |
| FM | Femtometre |
| TACP | Tactical Air Control Party - Technology Applications Certification Program |
| R&D | Research & Development |
| ARP | Address Resolution Protocol - Applied Research Programme |
| IMT | Integrated Management Tool |
| NDU | National Defense University (Washington |
| OPA | Other Procurement |