SINC
| Acronym | Definition |
|---|---|
| SINC | Species in Need of Conservation (Kansas) |
| SINC | Site of Interest for Nature Conservation |
| SINC | Sinus Cardinalis (function) |
| SINC | Survey on the Importance of Nature to Canadians |
| SINC | Special Instructions to Communicators |
| SINC | School Is Not Compulsory (UK) |