| AND | |
| abbr. auto. | and circuit |
| abbr. avia. | army/navy drawing |
| abbr. IT | Logical AND; any day now; AND function |
| abbr. med. | Allow Natural Death |
| abbr. mil. | alphanumeric display |
| abbr. oil | Advanced Digital Network; alphanumerical display |
| Information Technology | |
| abbr. astronaut. mil. | IT |