| Country | Term | Full Form | Definition | Meaning | Main Category // Subcategory | |
|---|---|---|---|---|
| Worldwide | ACT | Adoptive Cell Transfer | Medical // Treatments & Procedures | |
| Worldwide | ACT | Assertive Community Treatment | Medical // Psychiatry & Mental Health | |
| Worldwide | ACT | Advanced Concepts Team | Academic & Science // Research & Development | |
| Worldwide | ACT | Amazon Conservation Team | Associations & Organizations // Environment & Nature Organizations | |
| Worldwide | ACT | Apple Certified Trainer | Business // Business Terms | |
| Worldwide | ACT | Artemisinin Combination Therapy | Medical // Treatments & Procedures | |
| Worldwide | ACT | Acceptance and Commitment Therapy | Medical // Psychology | |
| Worldwide | ACT | Activated Clotting Time | Medical // Tests | |
| Worldwide | ACT | Activation | Computing // General Computing | |
| Worldwide | ACT | Active/Activity | Academic & Science // Language & Linguistics | |
| Worldwide | ACT | Action by Churches Together | Associations & Organizations // International Orgaizations | |
| Worldwide | ACT | Active/Activity | Academic & Science // Language & Linguistics | |
| Worldwide | ACT | American Canadian Tour | Sports & Games // Racing Sports | |
| Worldwide | ACT | Allied Command Transformation | Governmental // Military | |
| United States | ACT | AC Transit | Transport & Travel // Land Transport | |
| United States | ACT | Advanced Cell Technology | Business // Companies & Corporations | |
| United States | ACT | Ada Core Technologies | Business // Companies & Corporations | |
| United States | ACT | Association for Competitive Technology | Associations & Organizations // Trade Associations | |
| United States | ACT | America Coming Together | Governmental // Politics | |
| United States | ACT | Action for Children's Television | Associations & Organizations // Regional Organizations | |
| United States | ACT | American College of Toxicology | Associations & Organizations // Professional Associations | |
| United States | ACT | Academy of Clinical Thyroidologists | Associations & Organizations // Medical Organizations | |
| United States | ACT | Advanced Clean Trucks | Governmental // Rules & Regulations | |
| United States | ACT | American Conservatory Theater | Arts // Performing arts | |
| United States | ACT | Advanced Computer Techniques | Business // Companies & Corporations | |
| United States | ACT | Waco Regional Airport | Transport & Travel // Airport Codes | |
| United States | ACT | American College Testing | Academic & Science // Exams & Tests | |
| United States | ACT | Agency for Community Transit | Associations & Organizations // Regional Organizations | |
| United Kingdom | ACT | Associated Container Transport | Business // Companies & Corporations | |
| United Kingdom | ACT | Association for Citizenship Teaching | Associations & Organizations // Regional Organizations | |
| United Kingdom | ACT | Ascot | Transport & Travel // Railway Station Codes | |
| United Kingdom | ACT | Association of Corporate Treasurers | Associations & Organizations // Professional Associations | |
| United Kingdom | ACT | Applied Computer Techniques | Business // Companies & Corporations | |
| United Kingdom | ACT | Association of Cinematograph Technicians | Associations & Organizations // Trade Unions | |
| United Kingdom | ACT | Addenbrooke's Charitable Trust | Associations & Organizations // Regional Organizations | |
| United Kingdom | ACT | Advance Corporation Tax | Governmental // Rules & Regulations | |
| Thailand | ACT | Anglican Church in Thailand | Society & Culture // Religion & Spirituality | |
| Tanzania | ACT | Alliance for Change and Transparency | Governmental // Politics | |
| Switzerland | ACT | Azienda Comunale del Traffico Italian | Transport & Travel // Land Transport | |
| Philippines | ACT | Asian College of Technology | Academic & Science // Universities & Institutions | |
| Philippines | ACT | Alliance of Concerned Teachers | Associations & Organizations // Regional Organizations | |
| New Zealand | ACT | Association of Consumers and Taxpayers | Governmental // Politics | |
| India | ACT | Atria Convergence Technologies | Business // Companies & Corporations | |
| India | ACT | Asakalattur | Transport & Travel // IRCTC Station Codes | |
| Chile | ACT | Atacama Cosmology Telescope | Academic & Science // Astronomy & Space Science | |
| Canada | ACT | Action Coalition on Human Trafficking | Associations & Organizations // Regional Organizations | |
| Australia | ACT | Australian Capital Territory | Regional // Territories | |
| Australia | ACT | Australian College of Theology | Academic & Science // Universities & Institutions | |
The full form of ACT is Adoptive Cell Transfer in Medical (Worldwide).
The full form of ACT is Assertive Community Treatment in Medical (Worldwide).
The full form of ACT is Advanced Concepts Team in Academic & Science (Worldwide).
The full form of ACT is Amazon Conservation Team in Associations & Organizations (Worldwide).