In lang=en terms the difference between extort and filch
is that
extort is to wrest from an unwilling person by physical force, menace, duress, torture, or any undue or illegal exercise of power or ingenuity; to wrench away (from); to tear away; to wring (from); to exact; as, to extort contributions from the vanquished; to extort confessions of guilt; to extort a promise; to extort payment of a debt while
filch is to steal, to illegally take possession of.
As verbs the difference between extort and filch
is that
extort is to wrest from an unwilling person by physical force, menace, duress, torture, or any undue or illegal exercise of power or ingenuity; to wrench away (from); to tear away; to wring (from); to exact; as, to extort contributions from the vanquished; to extort confessions of guilt; to extort a promise; to extort payment of a debt while
filch is to steal, to illegally take possession of.