| Acronym | Meaning |
| ERP | Engineer Regulating Point |
| UHRB | Ultra-High Resolution Building (simulation) |
| MX | Mail Exchange -Mexico (FIPS 10-4 Country Code; ISO 3166 Digram) -Missile EXperimental |
| OOTW | Operations Other Than War |
| WIPP | [Nuclear] Waste Isolation Pilot Project |
| HTTP | HyperText Transfer Protocol |
| PASR | Personnel Accounting And Strength Reporting |
| YI | Yiddish Language (ISO 639-1 Code) |
| PLCC | Plastic Leaded Chip Carrier (electronics) |
| MK | Macedonian Language (ISO 639-1 Code) |