| Abbreviation | Definition |
|---|---|
| CSHS | Canyon Springs High School |
| CSHS | Cardinal Spellman High School |
| CSHS | Carine Senior High School |
| CSHS | Carl Sandburg High School |
| CSHS | Carrizo Springs High School |
| CSHS | Cave Spring High School |
| CSHS | Cedar Springs High School |
| CSHS | Cheyenne South High School |
| CSHS | Churchlands Senior High School |
| CSHS | Clarkstown South High School |
| CSHS | Coburg Senior High School |
| CSHS | College Station High School |
| CSHS | Connecticut School Health Survey |
| CSHS | Coral Shores High School |
| CSHS | Coral Springs High School |
| CSHS | Craigavon Senior High School |
| CSHS | Crawfordsville Senior High School |
| CSI | Center for School Improvement |
| CSI | Combined Summer Institute |
| CSI | Continuous School Improvement |