| Acronym | Meaning |
| CECOM | U.S. Army Communications And Electronics Command |
| DHY | Dahomey (ISO 3166 Trigram; Became BEN In 1977) |
| TACSOP | Tactical SOP (Standing Operating Procedure) |
| PVC | Permanent Virtual Circuit - PolyVinyl Chloride - Premature Ventricular Contraction - Primary Visual Cortex |
| PCI | U.S. Pacific Islands Trust Territory (ISO 3166 Trigram; Obsolete 1986) -Peripheral Component Interconnect (computer Bus) |
| SOUTHCOM | (U.S.) Southern Command |
| B | Bel - Boron |
| LTI | Linear Time-Invariant |
| MAR | Morocco (ISO 3166 Trigram) |
| RFI | Ready For Inspection - Ready For Issue - Request For Information - Radio Frequency Interference |