| Acronym | Meaning |
| SCN | Suprachiasmatic Nucleus |
| GR | Greece (FIPS 10-4 Country Code; ISO 3166 Digram) - Hail (METAR Code) |
| RSRE | UK Royal Signals And Radar Establishment (1976?1991) |
| SAFICT | Software Agents As Facilitators Of Interoperability In Collective Training |
| JAL | Japan Airlines |
| MTM | Methods-Time Measurement |
| IPA | India Pale Ale - International Phonetic Alphabet - Isopropyl Alcohol |
| IAS | Image Assessment System |
| JDEM | Joint Dark Energy Mission |
| CC | Many |