| Abbreviation | Definition |
|---|---|
| ACCN | Advances and Controversies in Clinical Nutrition |
| ACCN | Adventist Child Care Network |
| ACCN | Allegan County Community Network |
| ACCN | American Coordinating Council of Norway |
| ACCN | Anglican Creation Care Network |
| ACCN | Arab Coordination Centre for NGOs |
| ACCN | Authorized Courses and Code Numbers |
| ACCO | Achieve Create Collaborate and Organize |
| ACCO | Advisory Committee of Commission Officers |
| ACCO | Amount Colour Consistency Odour |
| ACCO | Association of Climate Change Officers |
| ACCO | Association of Climate Change Officers?? |
| ACCO | Association of County Commissioners of Oklahoma |
| ACCOMPANY | accompanies |
| ACCOMPLISH | Accomplished |
| ACCOMPLISH | accomplishes |
| ACCOMPLISH | Accomplishing |
| ACCOR | Army COMSEC Central Office of Record?? |
| ACCORD | Artists Contributing to Civic Oriented and Responsive Democracy |
| ACCORD | ASEAN and China Cooperative Operations in Response to Dangerous |