| Rank | Abbreviation | Meaning |
|---|
| ***** | TBAS | Test of Basic Aviation Skills
| |
| **** | TBAS | To Be Announced Securities
| |
| **** | TBAS | To Be Announced Soon
| |
| **** | TBAS | Treasury Board Accounting Standards
| |
| **** | TBAS | The British Antarctic Survey
| |
| **** | TBAS | Tertiary Butylacrylamide Sulfonic Acid
| |
| *** | TBAS | Tchoukball Association of Singapore
| |
| *** | TBAS | Tetrabutylammonium Sulfate
| |
| *** | TBAS | The Big Adventure Store
| |
| *** | TBAS | Treasury Board Accounting Standard
| |
| *** | TBAS | Tiered Body Armour System
| |
| *** | TBAS | Travel and Budget Analysis System
| |
| *** | TBAS | Trained Birth Attendants
| |
| ** | TBAS | Travel Blog Assistant System
| |
| ** | TBAS | Transaction-Based Authentication Scheme
| |
| ** | TBAS | Tumby Bay Area School
| |
| ** | TBAS | Tafila Busayra Archaeological Survey
| |
| ** | TBAS | Tampa Book Arts Studio
| |
| * | TBAS | Tampa Bay Aquarium Society
| |
| * | TBAS | Targeted Brownfield Assessments
| |
| * | TBAS | Trundle Bearing Assemblies
| |
| * | TBAS | Traditional birth attendants
| |
| * | TBAS | Traditional Birthing Attendants
| |
| * | TBAS | Touring Broadway Awards
| |
| * | TBAS | Time Brokerage Agreements
| |