| FAS | unrestrained by convention or morality |
|---|---|
| FAS | firmly fastened or secured against opening |
| FAS | (of surfaces) conducive to rapid speeds |
| FAS | quickly or rapidly (often used as a combining form) |
| FAS | firmly or tightly |
| FAS | sleeping deeply |
| FAS | a day designated for fasting |
| FAS | dye with fast colors |
| FAS | inexpensive food (hamburgers or chicken or milkshakes) prepared and served quickly |
| FAS | the traffic lane for vehicles that are moving rapidly |
| FAS | (Judaism) a Jewish fast day commemorating the destruction of the temples in Jerusalem |
| FAS | (Judaism) a Jewish fast day commemorating the destruction of the temples in Jerusalem |