| Acronym | Meaning |
| QID | Quater In Die (Latin |
| ROI | Return On Investment |
| IEC | International Electrotechnical Commission |
| AWE | Advanced Warfighting Experiment |
| EZ | Czech Republic (FIPS 10-4 Country Code) -Extraction Zone |
| YL | Yottalitre |
| RKBA | Right To Keep And Bear Arms (Second Amendment To The United States Constitution) |
| TWP | Technical Working Paper |
| P3I OR P?I | PrePlanned Product Improvement |
| PLO | Palestine Liberation Organization |