sort by Rank | Alpha
| Possible Meanings | Rank |
|---|
| National Institute of Weather and Atmospheric | ** |
| Naval Information Warfare Agency | * |
| Nat Inst Water Atmospheric | * |
| Navy Information Warfare Activity | * |
| Nigeria Inland Waterways Authority | * |
| Nigerian Inland Waterways Authority | * |
| National Institute of Water and Atmosphere | * |