| Subject | English | Thesaurus |
| abbr., el. | a-Se | amorphous selenium |
| law | admin per se | latin meaning, "by itself, inherently" |
| law | admin per se | Latin meaning, "by itself, inherently" Requires the Department of Motor Vehicles (DMV) to automatically suspend or cancel the driver's license of a driver whose blood alcohol content measures more than .08%, or who refuses to take a test to measure his/her blood alcohol level |
| law | admin per se | latin meaning, "by itself, inherently" |
| abbr., auto. | A/F SE | air flow sensor |
| abbr., avia. | AGE/SE | airplane ground equipment/support equipment |
| abbr., avia. | AGE/SE | aerospace ground equipment/support equipment |
| airports, abbr. | Aracaju, SE, Brazil | AJU |
| lat. | B.Se. | Baccalaureus Scientiarum ("bachelor of sciences") |
| abbr., el. | BH-SE | buried heterostructure surface emitting (laser) |
| abbr., auto. | CAR/S SE 1 | car speed sensor 1 |
| ocean., abbr. | Coordinated Research & Monitoring Program of Marine Contamination in the SE Pacific | CONPACSE |
| abbr., med. | CRAM-SE | Caisse Régionale D'Assurance Maladie Du Sud-Est |
| lat. | D.Se. | Doctor Scientiarum ("doctor of sciences") |
| abbr., st.exch. | FT-SE 100 | Financial Times-Stock Exchange 100 Share Index |
| invest. | FT-SE | Financial Times stock exchange index |
| abbr., avia. | I&SE | installation and service engineering |
| abbr., auto. | INT/A TEMP SE | intake-air temperature sensor |
| abbr., el. | J2SE | Java 2 platform standard edition |
| abbr. | J2SE | Java 2 Standard Edition (Java, Sun) |
| abbr., el. | LCL-SE | local supervisory equipment |
| abbr., auto. | MAS AIR/FL SE | mass air flow sensor |
| abbr., el. | MHS-SE | message handling system service element |
| abbr., el. | MVS/SE | multiple virtual system/system extension |
| Nasdaq, abbr. | Per-Se Technologies, Inc. | PSTI |
| abbr., file.ext. | Poseidon UML CE/SE Diagram | ZARGO |
| abbr. | pro se | pro per |
| law | pro se | Person who presents their own cases in court without lawyers |
| law, lat. | pro se | pro se legal representation |
| abbr., lat. | pro se legal representation | pro se |
| airports, abbr. | Rio Hondo, SE, Argentina | RHD |
| abbr., avia. | RQA&SE | reliability, quality assurance and safety engineering |
| abbr., el. | S/SE | superconductor/semiconductor (heterojunction) |
| abbr., oil | SE/4 | south-east quarter |
| abbr., el. | SE0 | single-ended zero |
| abbr., oil | SE/4 | southeast quarter |
| abbr. | SE-210 | Sud-Aviation SE-210 Karavelle |
| abbr., space | SE2 | software engineering environment |
| abbr., med. | 75SE | selenomethionine-75 |
| abbr., ecol. | SE4All | Sustainable Energy for All (dragonfly_89) |
| abbr., oil | SE/C | southeast corner |
| O&G, sahk.r. | SE DMS | SE Document Management System |
| abbr., O&G, sahk.r. | SE Document Management System | SE DMS |
| abbr., avia. | SE/FAC | support equipment/facility |
| abbr., el. | SE-HBT | single-emitter heterostructure bipolar transistor |
| abbr., scottish | SE&I | Systems Engineering & Integration |
| abbr. | SE & I | system engineering and integration |
| abbr., mil. | SE&I | Systems Engineering and Integration |
| mil. | SE/IWT | Southern Europe-inland waterways transport |
| abbr., el. | SE-LED | surface-emitting light-emitting diode |
| abbr., O&G, sahk.r. | SE-M | Sakhalin Energy Moscow |
| abbr., el. | SE/ME | single entry/multiple exit |
| abbr., el. | SE-MQWLD | segmented electrode multiquantum well laser diode |
| O&G | SE NA | screw end American National Acme Thread |
| abbr. | SE NC | screw end American National coarse thread |
| abbr. | SE NPT | screw end American National taper pipe thread |
| invest. | SE&O | salve errore et omissione |
| abbr. | SE&PCo | Savannah Electric and Power Company |
| abbr., O&G, sahk.r. | SE-R | Sakhalin Energy Rijswijk |
| mil. | SE/RRT | Southern Europe, railroad transport |
| mil. | SE/RT | Southern Europe, road transport |
| abbr., el. | SE-RTBT | superlattice-emitter resonant-tunneling bipolar transistor |
| abbr., el. | SE/SE | single entry/single exit |
| abbr., avia. | SE/TA | system engineering technical assistance |
| abbr., mil., avia. | SE&TD | systems engineering and technical direction |
| abbr., el. | SE&TD | system engineering and technical direction |
| abbr. | SE & TD | systems engineering and technical direction |
| abbr., O&G, sahk.r. | SE-YS | Sakhalin Energy Yuzhno-Sakhalinsk |
| abbr., stat. | standard error, SE | s.e. (стандартная ошибка kat_j) |
| meteorol., abbr. | Sud-Aviation SE-210 Karavelle | SE-210 |
| abbr., auto. | TEMP SE | temperature sensor |
| abbr. | U&SE | 1">>U |
| rude, abbr. | U&SE=1">>U | Screw You |
| abbr., el. | UV-SE | ultraviolet spectroscopic ellipsometry |
| abbr., file.ext. | WIN...SE | Windows Second Edition (Microsoft) |
| black.sl. | you'se | you are (Aviator) |
