| Meaning | Category |
| Sentence Error Rate | Community->Educational |
| Serial | Governmental->NASA |
| Service Employment And Redevelopment | Business->General |
| Significant Emission Rate | Governmental->Environmental |
| Smooth Endoplasmic Reticulum | Computing->General |
| Sociedad Española de Radiodifusion | Community->Media |
| Sociedad Española de Radiodifusión | International->Spanish |
| Somatosensory-evoked responses | Medical->Laboratory |
| Space Emergency Rescue | Governmental->NASA |
| Standard Electric Radio | Academic & Science->Electronics |
| State Explain Relate | Business->General |
| Structural Engineer Of Record | Business->Positions |
| Student Economic Review | Academic & Science->Universities |
| Suspension, Extended Release | Medical->Physiology |
| System Evaluation Report | Governmental->Military |
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