Able to be put into operation; practicable
Able to be operated or used
Able to be treated by surgery
Capable of being done or achieved; feasible.
Apparently valid, likely, plausible.
Able but not certain to happen; neither inevitable nor impossible.
Being considered, e.g. for a position.
A possible choice, notably someone being considered for a position.
A particular event that may happen.
A possible one.