A possible one.

A possible choice, notably someone being considered for a position.

“Jones is a possible for the new opening in sales.”

A particular event that may happen.

(usually not comparable) Able but not certain to happen; neither inevitable nor impossible.

“It's not just possible, it's probable.”

Capable of being done or achieved; feasible.

“It's possible for anyone to learn to pay the bagpipes.”

Being considered, e.g. for a position.

“Jones and Smith are both possible for the opening in sales.”