Acronym |
Definition |
| AR | Antiwar Republican |
| AR | A**hole Republicans |
| ARAB | Antifaschistische Revolutionäre Aktion Berlin (Antifascist Revolutionary Action Berlin) |
| ARDU | Afar Revolutionary Democratic Union |
| ARDUF | Afar Revolutionary Democratic Unity Front |
| ARF | Armenian Revolutionary Federation |
| ARI | Always Reaching for Independence |
| ARI | Angus Reid Institute |
| ARPAC | Alabama Realtors Political Action Committee |
| ASALA | Armenian Secret Army for the Liberation of Armenia |
| ASB | Alianza Socialista de Baleares |
| ASDC | Association of State Democratic Committees |
| ASDE | Alliance of Socialists and Democrats for Europe |
| ASEAN | Association of Southeast Asian Nations |
| ASMI | American Strategic Management Institute |
| ASPECT | Alliance for Social Political Ethical and Cultural Thought |
| ASPP | Association for Social and Political Philosophy |
| ASPRI | Advanced Social and Political Research Institute |
| ASSR | Autonomous Soviet Socialist Republic |
| ASTAK | The Anti-Stalinist Action Normannenstraße |
| ASWG | Abortion Services Working Group |
| ATHL | At The Highest Level |
| ATI | Activist Times Incorporated |
| ATICM | Arab Telecommunications and Information Council of Ministers |
| ATR | After The Revolution |
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