| Subject | English | Thesaurus |
| abbr., scottish | Advanced Color Work Station | ACWS (USA) |
| univer., abbr. | Advanced Credit | AC |
| abbr., avia. | Advanced General Aviation Transport Experiments | AGATE (bonly) |
| softw., abbr. | Advanced Mathematics Software | AMS |
| mil., abbr. | Advanced Medium Short Take-off and Landing STOL Transport | AMST |
| abbr., scottish | Advanced Medium STOL Transport | AMST |
| transp., abbr. | Advanced Passenger Transport | APT |
| softw., abbr. | Advanced Scsi Programmer's Interface | ASPI |
| abbr., scottish | Advanced Short / Medium-Range transport | ASMR |
| abbr., scottish | Advanced Technology Tactical Transport | AT3 (USA) |
| abbr., scottish | Advanced Technology Transport | ATT |
| abbr., IT | Advanced Text Management System | ATMS |
| abbr., scottish | Advanced Theater Transport | ATT (USAF) |
| mil., abbr. | Advanced Theatre Transport | ATT |
| mil., abbr. | Advanced Transport Technology | ATT |
| transp., abbr. | Advanced Transport Telematics | ATT |
| abbr. | Certificate of Advanced Study in Mathematics | CASM (Anglophile) |
| meteorol., abbr. | Computer Hardware Advanced Mathematics and Model Physics | CHAMMP |
| astrophys. | JWST Advanced Deep Extragalactic Survey | JADES (MichaelBurov) |
| univer., abbr. | Mathematics Advanced Study Semester | MASS |