1. plural of bluebeard; men who are serial killers or who murder their wives
Usage: literary/historical reference; often capitalized when referring to the fairy tale character
2. plural of bluebeard; men with dark beards or heavy facial hair
Usage: descriptive; archaic or literary

Examples

• The historical accounts of various bluebeards have inspired countless literary works.
• The fairy tale warns children about the dangers posed by bluebeards.
• Several bluebeards appear in European folklore and legend.
• The novel explores the psychology of bluebeards throughout history.
• Medieval stories of bluebeards served as cautionary tales for young women.