| Acronym | Meaning |
| ALAP | As Long/Late As Possible |
| KARNAC | Knowledge Aided Retrieval In Activity Context |
| IAF | Industrial Areas Foundation |
| INDIGO | (U.S.) INtelligence DIvision Gaming Operation |
| LE | Lebanon (FIPS 10-4 Country Code) |
| CFS | Chronic Fatigue Syndrome |
| TIBS | Tactical Information Broadcast System |
| ANS | Applied And Natural Sciences |
| IMBD | International Migratory Bird Day |
| ETH | Ethiopia (ISO 3166 Trigram) |