| Acronym | Meaning |
| INTSUM | Intelligence Summary |
| NAIRU | Non Accelerating Inflation Rate Of Unemployment |
| RERC | Rehabilitation Engineering Research Center |
| PGP | Pretty Good Privacy |
| IT | InferoTemporal (neurophysiology) - Information Technology -Italy (FIPS 10-4 Country Code; ISO 3166 Digram) |
| PPS | Post Postscriptum - Precise/Precision Positioning Service (GPS) - PolyPhenylene Sulfide |
| N/K/A | Now Known As |
| FTP | File Transfer Protocol |
| BADD | Battlefield Awareness And Data Dissemination |
| IND | Indonesian Language (ISO 639-2 Code) |