| Acronym | Meaning |
| DO | Dominica (FIPS 10-4 Country Code) - Dominican Republic (ISO 3166 Digram) -Doctor Of Osteopathy |
| IIRC | If I Recall/Remember Correctly |
| TAT | Tourism Authority Of Thailand |
| USN | United States Navy |
| NYHA | New York Heart Association |
| UNICEF | United Nations Children's Fund (originally The United Nations International Children's Emergency Fund) |
| PSS | Personnel System Support |
| BCE | Banque Centrale Europ?enne - Battlefield Co-ordination Element - Before Common Era - British Columbia Electric Railway |
| DIR | Defence Industrial Research |
| TMM | Turkmen Manat (ISO 4217 Currency Code) |