English abbreviations from ers to es
- ERS (Engineroom Supervisor)
- ERSA (Eagle River Sports Arena)
- ERSC (extended range subcalibre)
- ERSD (Estimated Return to Service Date)
- ERT (Emergency Response Training)
- ERT-A (Emergency Response Team - Advance Element)
- ERTB (East Riding Thai Boxing)
- ERTEE (Everything is Related to Everything Else)
- ERTF (Education Re-engineering Task Force)
- ERTI (Emergency Response Training Institute)
- ERTR (e-Review of Tourism Research)
- ERTS (Earth Resources Technology Satellite (became Landsat))
- ERU (Erume Airport)
- ERV (emergency rescue vehicle)
- ERW (Electrolyzed Reduced Water)
- ERZ (Erzurum Airport)
- ES (Extreme Spread)