| Acronym | Meaning |
| SOP | Standing/Standard Operating Procedure |
| NCO | Non-Commissioned Officer |
| ROC | Receiver Operating Characteristic (statistics) - Regional Operations Centre - Republic Of China - Roc-A-Fella Records |
| RTBF | Radio-T?l?vision Belge De La Communaut? Fran?aise |
| MACHO | MAssive Compact Halo Object |
| FDA | Food And Drug Administration (U.S.) |
| MATREX | Modeling Architecture For Technology |
| TZ | Tanzania (ISO 3166 And FIPS 10-4 Country Code Digram) |
| DSP | Defense Standardization Program - Defense Support Program - Digital Signal Processing |
| GPIB | General-Purpose Instrumentation/Interface Bus |