| n. | 1. | The hero of a mediæval French nursery legend, who, leaving home, enjoined his young wife not to open a certain room in his castle. She entered it, and found the murdered bodies of his former wives. - Also used adjectively of a subject which it is forbidden to investigate. |
| Noun | 1. | Bluebeard - (fairytale) a monstrous villain who marries seven women; he kills the first six for disobedience |