| NON | |
| abbr. | Never Order Napkins; Norse, Old |
| abbr. astronaut. | negative orbital normal |
| abbr. avia. | Nonouti, Republic Of Kiribati |
| abbr. el. | negative orbit normal; nitride/oxide/nitride stack; normally on |
| tech. | notice of nonconformance |
| Non | |
| abbr. oil | Nonionella |
| Tactical | |
| abbr. scottish | Tac |
| tactical | |
| abbr. | tctl |
| Automated Data Processing | |
| abbr. publ.secur. | ADP |
| Program | |
| abbr. file.ext. | .prg |
| program | |
| abbr. | pgm; prog; progr |
| abbr. plast. | programme |
| mil. abbr. | pm |
| mil. logist. | Set of instructions written in a specific language, and used by a computer. |
| progr. | computer program |