| Acronym | Meaning |
| BFF | Best Friends Forever |
| CHI | Computer-Human Interaction |
| FPS | Fire Prevention System - First Person Shooter (computer/video Games) |
| TUI | Text User Interface (cf. CLI) |
| MLW | Mean Low Water (nautical Charts) |
| AWP | Awaiting Parts (SM&R Code) |
| CLO | Cornell Lab Of Ornithology |
| CHS | Combat Health Support |
| DNK | Denmark (ISO 3166 Trigram) |
| HE | High Explosive |