| AUT | AUSTRIA | | | | Details |
| auth | authorized | | | | Details |
| auto | automatic | | | | Details |
| auto | automotive | | | | Details |
| autogas | automotive gasoline | | | | Details |
| IUHTAUTC | If Used, Half Time ActUally To Count | | | | Details |
| UUIWCTAUTC | Unless Used In Which Case Time Actually Used To Count. | | | | Details |
| nautmi | nautical mile | | | | Details |
| auth | authigenic | | | | Details |
