| Abbreviation | Definition |
|---|---|
| TBI | The Big Issue |
| TBMP | Trademark Trial and Appeal Board Manual of Procedure |
| TBN | The Bad News |
| TBN | To Be Negotiated |
| TBQ | To Be Quoted |
| TBRA | Tax Base Revitalization Account |
| TBS | To Be Signed |
| TBT | Technical Barriers to Trade |
| TC | Tax Code |
| TC | Tax Credit |
| TC | Technical Committee |
| TC | Time Conflict |
| TC | Total Control |
| TC | Total Costs |
| TC | Trade Classification |
| TC | Trilateral Commission |
| TCA | The Conspiracy Alliance |
| TCAM | Test Control And Acquisition Monitoring |
| TCB | Telecommunications Certification Body |
| TCC | Total Construction Cost |