| Acronym | Meaning |
| TTZ | Tetrazolium |
| JD | Jack Daniels (whiskey) - Julian Day - Juris Doctor (Latin |
| BRFSS | Behavioral Risk Factor Surveillance System (burf-us |
| CPV | Cape Verde (ISO 3166 Trigram) |
| A2C2 OR A?C? | Army Airspace Command And Control |
| GRB | Gamma-Ray Burst |
| ENT | Ear |
| VDMOS | Vertical Double-diffused MOS Transistor (vee-dee-moss) |
| TJ | Tajikistan (ISO 3166 Digram) - Terajoule |
| TMJ | TemporoMandibular Joint (syndrome) |