| Abbreviation | Definition |
|---|---|
| T.G.T. | Trained Graduate teacher |
| T.M.O. | Telegraph Money Order |
| T.R.I.P. | Trade Related intellectual Property |
| T5ZZ | Interpret As Command |
| TA | Territorial Army |
| TA | Travel Allowance |
| TA | Traveling Allowance |
| TA | Target Address |
| TA | Teacher Assistant |
| TA | Teaching Artist |
| TA | Teacher Advisor |
| TA | Travel Agent |
| TA | Teacher's Assistant |
| TA | Technical Assistant |
| TA | Teaching Assistant |
| TAA | Tumor Associated Antigen |
| TAAA | Texas Agricultural Aviation Association |
| TAAF | Tropical Agriculture Award Fund |
| TAAI | Travel Agents Association of India |
| TAB | Tetanus Anti-Bacilli (for inoculation against tetanus) |
| TAB | Tumors Accidents And Burns |
| TAC | Technical Advisory Committee |
| TAC | Treaty of Amity and Cooperation |
| TAC | Tariff Advisory Committee |
| TAC | Traditional Alphanumeric Codes |
| TAC | Technology Advisory Committee |
| TACL | Texas Air Conditioning License |
| TAD | Thermophilic Aerobic Digestion |
| TADA | Terrorists and Disruptive Activities (Prevention) act |
| TADA | Terrorist and Disruptive Activities Act |
| TAF | Terminal Aerodrome Forecast |
| TAG | Technician Affiliate Group |
| TAL | Typed Assembly Language |
| TAME | Traits Attitudes Moods And Emotions |
| TAMP | Tarrif Authority of Major Ports |
| TANSI | Tamil Nadu Small Industries Corporation |
| TAO | Tropical Atmosphere Ocean |
| TAO | Tropical Atmosphere-Ocean |
| TAP | Trainer Activity Profile |
| TAP | Training And Placement |
| TAP | Temporary Applicant Pool |
| TAPI | Telephony Application Programming Interface |
| TAPS | Tarapur Atomic Power Station |
| TAPS | Tonality Attitude Posture And Smile |
| TAPS | Technical Administrative Professional Staff |
| TARA | Technology And Resource Advisor |
| TARG | Technology And Application Resource Group |
| TAS | Test And Set |
| TASA | The American Society of Agronomy |
| TASC | Technical Assistance for Specialty Crops |