| Acronym | Meaning |
| MEO | Medium Earth Orbit - Most Efficient Organization |
| LI | Fifty-one (in Roman Numerals) -Liberia (FIPS 10-4 Country Code) - Liechtenstein (ISO 3166 Digram) |
| SRS | Savannah River Site |
| TBT | Tributyltin |
| AO | Angola (FIPS 10-4 Country Code; ISO 3166 Digram) -Approach Officer (submarine) - Area Of Operations |
| CLI | Command Line Interface/Interpreter |
| CICS | Customer Information Control System (IBM Mainframe Software; Kicks Or C-I-C-S) |
| GDL | Game Definition Language |
| DNR | Do Not Resuscitate |
| EN | Corps Of Engineers -Estonia (FIPS 10-4 Country Code) - Exanewton |