| Acronym | Definition |
|---|
| TBD | To Be Determined |
| TBD | To Be Defined |
| TBD | To Be Decided |
| TBD | To Be Done |
| TBD | Time to Break Down |
| TBD | To Be Developed |
| TBD | To Be Discussed |
| TBD | There Be Dragons |
| TBD | Transmit Buffer Descriptor |
| TBD | Tape Backup Device |
| TBD | To Be Deleted |
| TBD | To Be Destroyed |
| TBD | Thousand Barrels Per Day (petroleum measurement) |
| TBD | Tick-Borne Diseases |
| TBD | The Black Donnellys (TV show) |
| TBD | Trunk Based Development (computing) |
| TBD | Ten Business Days |
| TBD | To Be Discontinued |
| TBD | Trial by Declaration (traffic law) |
| TBD | To Be Detailed |
| TBD | Tibetan Book of the Dead (song) |
| TBD | Track Before Detect |
| TBD | Teddy Bear Dreams (television show) |
| TBD | Torpedo - Boat - Destroyer |
| TBD | Technical Background Document |
| TBD | To Be Dated |
| TBD | 1,5,7-Triazabicyclo[4.4.0]dec-5-ene (bicyclic guanidine base) |
| TBD | Technical Basis Document |
| TBD | Treasury Board Directive (Canada) |
| TBD | Taco Bell Dog |
| TBD | Training by Design |
| TBD | Thai Bangkaew Dog |
| TBD | Technischer Beratungsdienst (German: Technical Consultancy) |
| TBD | Too Busy Disorder (humor) |
| TBD | Target Bearing Designator (US Navy) |
| TBD | To be Demanded |
| TBD | Totally Brain Dead |
| TBD | Tampa Bay Drunks |
| TBD | Task-Based Development (software development) |
| TBD | The Big Duck (landmark; Long Island, NY) |
| TBD | The Best Deceptions (band) |
| TBD | Technical Baseline Document |
| TBD | Douglas Devastator Torpedo Bomber (WW II) |
| TBD | Triangular Barrier Diode |
| TBD | Time/Bearing Display |
| TBD | Terminal Bomber Defense |
| TBD | Tableau de Bord des Devoirs (French: Homework Dashboard; online students' time management tutorial; France) |
| TBD | The Boomer Destination |
| TBD | T Baldwin Demerest School (Old Tappan, New Jersey) |
| TBD | The Bulgarian Devastation (gaming clan) |
| TBD | Thought by Design (UK) |
| TBD | Team Baby Dick (gaming clan) |
| TBD | Too Bad, Dude |