| Acronym | Definition |
|---|
| TBSI➣Traditional Building Skills Institute (Snow College; Ephraim, UT) |
| TBSI➣Tafelmusik Baroque Summer Institute |
| TBSI➣Texas Brain and Spine Institute (Bryan, TX) |
| TBSI➣Turner Broadcasting System, Inc. International (Time Warner, Inc.) |
| TBSI➣Tokyo Broadcasting System International |
| TBSI➣Tert-Butyl-2-Benzothiazyl Sulfenimide |