| Acronym | Definition |
|---|
| TNBC➣Triple Negative Breast Cancer (oncology) |
| TNBC➣The Nightmare Before Christmas (1993 movie by Tim Burton) |
| TNBC➣Tanzania National Business Council |
| TNBC➣Teen NBC (National Broadcasting Company, NBC) |
| TNBC➣'Twas the Night Before Christmas (stage play) |
| TNBC➣The Northern Boys Club (UK) |
| TNBC➣Thursday Night Book Club |