| Term | Full Form | Definition | Meaning |
|---|---|
| T | Temperature |
| T | Tera |
| T | Time period |
| T | Tesla |
| t | time |
| T | Teen |
| T | Threonine |
| T | Thymine |
| T | Testosterone |
| t | tonne |
| T | Telekom |
| T | Tyrannosaurus |
| T | Treasury |
| T | Tritium |
| T | Telephone |
| T | Tablespoon |
| t | teaspoon |
| T | Thymus |
| T | Time-reversal |
| T | Massachusetts Bay Transportation Authority |
| T | Oslo Metro |
| T | Stockholm metro |
| T | Pittsburgh Light Rail |
| T | Three-millimeter |
| T-Bill | Treasury Bills |