| Acronym | Definition |
|---|
| COSF➣Cgi Open Source Foundry |
| COSF➣CGI (Common Gateway Interface) Open Source Federation |
| COSF➣Child Outcomes Summary Form (various locations) |
| COSF➣Conejo Open Space Foundation (est. 1995; Thousand Oaks, CA) |
| COSF➣City of San Francisco (California) |
| COSF➣Children of Sikkim Foundation (orphaned children fund) |
| COSF➣Capital Outlay Stabilization Fund (Arizona) |