Let us imagine, for a moment, that Macbeth and Macduff were beholden to the laws of semantics:
(Macbeth and Macduff are fencing in front of a castle.)
MACBETH: Macduff! Let fall thy blade on vulnerable crests. I bear a charmed life, which must not yield to one of woman born.
MACDUFF: Despair thy charm! Macduff was from his mother’s womb untimely ripped.
(They stop sword fighting.)
MACDUFF: I was extracted surgically, in an operation.
MACBETH: Okay, but thou wast still born, right?
MACDUFF: No. Untimely ripped.
MACBETH: Okay, but after thou wast ripped, thou wast of woman born.
MACDUFF: I don’t know…
The rest of the tale, complete with still-tragic ending, is here.