Doer (فاعِلٌ)
العقيدة
المعنى الاصطلاحي :
One who can perform an action, while possessing the ability and will to do it.
التعريف اللغوي المختصر :
"Faa`il": doer of an action. "Fi`l": action, movement of the body. "Fi`l" originally means making something happen.