| Abbreviation | Definition |
|---|---|
| SVCA | Silicon Valley Christian Assembly |
| SW | Set Word |
| SW | Signed Word |
| SW | Single Word |
| SW | Store Word |
| SWAF | Special Weapons Assembly Facility |
| SWB | Subtract With Borrow |
| SWI | SoftWare Interrupt |
| SWRA | South West Regional Assembly |
| SX | Start X |
| SXY | Swap X and Y Registers |
| SZ | String Zero |
| T5ZZ | Interpret As Command |
| TA | Target Address |
| TAFAA | Transmit Antenna Feed Array Assembly |
| TAL | Typed Assembly Language |
| TAP | Test Assembly and Packaging |
| TAPS | Treat Assembly Production System |
| TAS | Test And Set |
| TASM | Turbo Assembler |