English abbreviations from set to sex
- SET (San Esteban Airport)
- SETA (Sector Education and Training Authorities)
- SETAF (Southern European Task Force)
- SETAs (Sector Education and Training Authorities)
- SETC (Software Engineering And Technology Center)
- SETDA (State Education Technology Directors Association)
- SETEC (Semiconductor Equipment Technology Center)
- SETG (Site Electrical Task Group)
- SETH (Simulation Equipment Test Hardware)
- SETI ((observing program) Search for Extra-Terrestrial Intelligence)
- SETS (Scnet Ecommerce Transaction Server)
- SETT (Student Environment Tasks And Tools)
- SEU (Single Event Upset (solid state physics))
- SEV (Several)
- SEVIS (Student Exchange And Visitor Information System)
- SEW (Shared Early Warning)
- SEWA (Self Employed Women's Association)
- SEWER (Saving Erie's Water Environmental Resources)
- SEWG (Special Events Working Group)
- SEWS (Satellite Early Warning System)
- SEWTAWS (Space and Electronic Warfare Tactical Advanced Work Station)
- SEX (Sembach Air Base)