| Acronym | Meaning |
| SLT | Speech And Language Therapist -Solid Logic Technology (electronics) - Swing Landing Trainer (paratroops) - (i)Secondary Lymphoid Tissue |
| GML | Game Maker Language - Generalized Markup Language - Geography Markup Language - Graph Modelling Language - Graphical Motion Language - GUI Markup Language |
| ANZAC | Australian And New Zealand Army Corps |
| EEZ | Economic Exclusion Zone Or Exclusive Economic Zone |
| GOC | General Officer Commanding |
| ER | Erbium |
| IGY | International Geophysical Year |
| IA | Interlingua Language (ISO 639-1 Code) |
| LOFAR | Low Frequency Analysis And Recording |
| MHW | Mean High Water (nautical Charts) |