The witches told Macbeth that no man born from woman could kill him, but Macduff was born by Cesarean section meaning that he wasn't technically born naturally from woman.
He is able to do it because the prophecies (one of which was "Beware Macduff!" as you will remember) are specially tailored to allow Macduff to be the one to kill Macbeth. The witches know full well that Macduff was "not of woman born" in the sense that he was delivered by Cesarian section, which is why they worded their prophecy that way.
It's like saying "no American-born state governor will ever" do something. It helps if you know ahead of time than there is a state governor who is not American-born.
On the battlefield, Macbeth at last encounters Macduff. They fight, and when Macbeth insists that he is invincible because of the witches' prophecy, Macduff tells Macbeth that he was not of woman born, but rather from his mother's womb / Untimely ripped (5.10.15-16). Macbeth suddenly fears for his life.
Macduff. He was born by Caesarian section which apparently doesn't count.
MacBeth meets the three witches with lady MacBeth
It means that Macduff was delivered by caesarian section, and therefore, was not "of woman born" in the conventional sense; meaning that, according to the witches' prophecy, he would be capable of killing Macbeth.
In an apparition, the three witches show Macbeth a bloody child that is meant to symbolize the just-born Macduff.
Macbeth is ultimately defeated by Macduff because Macbeth was not naturally born of a woman, as Macduff was born through caesarean section. This loophole in the witches' prophecy allows Macduff to kill Macbeth and fulfill the prophecy.
Macbeth was killed by Macduff in Act 5, Scene 8 of the play "Macbeth." Macduff reveals that he was not "of woman born" in a traditional sense, fulfilling the witches' prophecy that he is the only one who can defeat Macbeth.
In Shakespeare's play "Macbeth," Dunsinane Hill is where the final battle takes place between Macbeth's forces and those of Malcolm and Macduff. Macbeth is ultimately defeated by Macduff, fulfilling the witches' prophecy.
On the battlefield, Macbeth at last encounters Macduff. They fight, and when Macbeth insists that he is invincible because of the witches' prophecy, Macduff tells Macbeth that he was not of woman born, but rather from his mother's womb / Untimely ripped (5.10.15-16). Macbeth suddenly fears for his life.
Macduff. He was born by Caesarian section which apparently doesn't count.
He was born by cesarean section and fulfills the witches prophecy that only a man not born of a woman can kill Macbeth
MacBeth meets the three witches with lady MacBeth
Macduff fulfills the witches' prophecy by being born through a cesarean section, meaning he was not technically "born of woman" in the traditional sense. This loophole allows him to successfully defeat Macbeth in the play "Macbeth" by William Shakespeare.
In Shakespeare's Macbeth, the witches prophecy to Macbeth that he cannot be killed by any man born of a woman. Macbeth takes this to mean that he is safe from violence. It is later revealed to him that "Macduff was from his mother's womb untimely ripped," meaning that Macduff was not "born" in the strict sense.
Macbeth is killed in battle by Macduff. Macduff reveals that he was not "born of woman" in a traditional manner, fulfilling the witches' prophecy that only a man not born of woman can defeat Macbeth. Malcolm, the rightful heir, is then crowned king.
Macbeth believes he is invincible because of the witches' prophecy that "none of woman born shall harm Macbeth." He interprets this to mean that he cannot be killed by any man. This overconfidence and misplaced trust in the witches' prophecy lead him to underestimate his opponents.
It means that Macduff was delivered by caesarian section, and therefore, was not "of woman born" in the conventional sense; meaning that, according to the witches' prophecy, he would be capable of killing Macbeth.