| Acronym | Meaning |
| WIA | Wounded In Action |
| SETAC | Society For Environmental Toxicology And Chemistry |
| USGS | United States Geological Survey |
| OP | Observation Point/Post |
| VNIR | Visible And Near InfraRed |
| FCO | UK Foreign And Commonwealth Office |
| LL | Land Line (telephone) - Last Log - Late Latin - Left Limit - Lex Luthor (Superman Character) - Light Line - Limited Liability - Linked List - Little League |
| FAADEZ | Forward Area Air Defence Engagement Zone |
| WTC | World Trade Center |
| ICHTHYS | Iesous Christos |