| Acronym | Meaning |
 | DO | Dominica (FIPS 10-4 Country Code) - Dominican Republic (ISO 3166 Digram) -Doctor Of Osteopathy |
| WL | Wehrmacht Luftwaffe (German WW2 Air Force Vehicle Licence Plate Code) |
| USS | United States Ship (sometimes Meaningless; See Star Trek) |
| ROZ | Restricted Operations Zone |
| ISLN | International Standard Lawyer Number |
| GR | Greece (FIPS 10-4 Country Code; ISO 3166 Digram) - Hail (METAR Code) |
| URI | Uniform Resource Identifier |
| ICAO | International Civil Aviation Organization |
| I | Iodine - One (in Roman Numerals) |
| HRK | [[Croatian Kuna (ISO 4217 Currency Code) |
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