sort by Rank | Alpha
| Possible Meanings | Rank |
|---|
| Ontario Alliance of Christian Schools | *** |
| Office of Active Citizenship and Service | *** |
| Open Architecture Community System | *** |
| Oakfield Alabama Central School | *** |
| Ohio Association of Convenience Stores | ** |
| OPTICALLY ACTIVE COATING SYSTEM | ** |
| Office of Academic Credentials and Standards | ** |
| Ohio Academic Content Standards | ** |
| Office of the Assistant Chief of Staff | ** |
| Ohio Association of Christian Schools | ** |
| Open Access Communication for Science | * |
| of acute cough study | * |
| Office of Academic Computer Services | * |
| Online Aircraft Charter Services | * |
| Office Automation and Communications System | * |
| Orthodox Anglican Church of the South | * |
| Ohio Appalachian Clean Streams | * |