| FAS | a cunning or deceitful action or device |
|---|---|
| FAS | nuclear reactor in which nuclear fissions are caused by fast neutrons because little or no moderator is used |
| FAS | (in simulation) the time scale used in data processing when the time-scale factor is less than one |
| FAS | moving swiftly |
| FAS | tending to spread quickly |
| FAS | (baseball) a pitch thrown with maximum velocity |
| FAS | (basketball) a rapid dash to get a shot as soon as possible after taking possession of the ball |
| FAS | make tight or tighter |
| FAS | attach to |
| FAS | cause to be firmly attached |
| FAS | become fixed or fastened |
| FAS | adopt, as of ideas |