English abbreviations from circ to cis
- CIRC (Cooperative Integrated Reading and Composition)
- CIRCA (Conceptual Information Retrieval And Communication Architecture)
- CIRCE (Computing In A Roving Chaotic Environment)
- CIRC II (Central Information Reference and Control II)
- CIRCLE (Center For Improving Readiness Of Children For Learning And Education)
- CIRCM (Common Infrared Countermeasures program)
- CIRCUIT-A (Counter-Insurgency Rescue Combat Unit Intercepting Terrorist Activity)
- Circumpeone. (Circumspectione ("Circumspection" abl. case))
- CIRF (Cancer Immunology Research Foundation)
- CIRM (Centro Internazionale Radio Medico (International Radio-Medical Center))
- CIRN (Commanders Information Report Network)
- CIRS (Centre for Interactive Research on Sustainability (UBC))
- CIRT (Critical Incident Response Team)
- CIRV (Common Interswitch Rekeying Variable)
- CIRVIS (Communications Instructions for Reporting Vital Intelligence Sightings)
- CIS (Chartered Industries of Singapore)