| Acronym | Meaning |
 | DY | Dysprosium |
| WW | See Entry |
| RW | Rwanda (ISO 3166 And FIPS 10-4 Country Code Digram) |
| INDIGO | (U.S.) INtelligence DIvision Gaming Operation |
| MHLW | Mean Higher Low Water (nautical Charts) |
| NATO | National Association Of Theatre Owners - North Atlantic Treaty Organisation |
| BFF | Best Friends Forever |
| GUI | Graphical User Interface (goo-ey) |
| MMCM | Machinist's Mate |
| JP | Japan (ISO 3166 Digram) -Justice Of The Peace |
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