| Acronym | Meaning |
| TN | Tswana Language (ISO 639-1 Code) |
| IY | Iraqi-Saudi Neutral Zone (FIPS 10-4 Territory Code; Obsolete 1993) |
| MAPS | Monitoring Avian Productivity And Survivorship |
| ORB | #NAME? |
| HPGL OR HP | GL -Hewlett-Packard Graphics Language |
| NWFZ | Nuclear-Weapon-Free Zone |
| BAO | Battlefield Air Operations |
| NSB | Norges Statsbaner (Norwegian State Railways) |
| GLC | Gas-liquid Chromatography |
| VIE | Vietnamese Language (ISO 639-2 Code) |