| JIC | Just in Case |
| WC | Worst Case |
| iac | Chatsprache: in any case Chat-Kürzel: in jedem Falle // auf jeden Fall |
| l.c. | Lower Case |
| u.c. | upper case |
| CIT | Case Institute of Technology |
| CDIF | CASE Data Interchange Format |
| BC | Chatsprache: Basket Case [engl.] Chat-Kürzel: hoffnungsloser Fall |
| CBR | Case Based Reasoning [engl.] Datenbankanwendung |
| CWRU | Case Western Reserve University |
| CCE | St. Martin Grand Case Airport Antillen [Internationaler Airport Code] |
| OPCAT | Object Process CASE Tool |
| CDIF | CASE Tool Data Interchange Format [engl.] Spezifikation für verteilte Datenbanken |
| ESL | Emergency Stand-Alone |
| ER | Emergency Room Notaufnahme |
| EPO | Emergency Power Off |
| EMT | Emergency Medical Technician |
| EBD | Emergency Boot Disk |
| ETAS | Emergency Technical Assistance |
| ESN | Emergency Service Number |
| ESD | Emergency Shutdown Device |
| ESB | Emergency Service Bureau |
| ERU | Emergency Recovery Unit |
| ERD | Emergency Repair Disc |
| ERD | Emergency Repair Diskette |
| ELT | Emergency Locator Transmitter |
| FEMA | Federal Emergency Management Agency Washington, DC, http://www.fema.gov |
| GWEN | Ground Wave Emergency Network |
| CERT | Computer Emergency Response Team [DFN] |
| ECCS | Emergency Core Cooling System |
| CEASA | Cellular Emergency Alert Service Association |
| CERT | Computer Emergency Response Team [engl.] Internet-Gruppe für den Einsatz bei Sicherheitsproblemen |
| EPIRB | Emergency Position Indicating Radio Beacon |
| HERT | HERT/Hackers' Emergency Response Team |
| ECRIT | Emergency Context Resolution with Internet Technologies |
| AVERT | Antivirus Emergency Response Team [NAI] [engl.] |
| EIS | Electronic/Employee/Emergency Information Services/System |
| SECC | Single Edge Connector / Contact Case / Connector |