Billie is a diminutive form of William, derived from the Old German words 'wil' meaning 'desire' or 'wish' and 'helm' meaning 'protector'. It has been used as a nickname for boys since the Middle Ages.
The name Billie has cultural significance in the United States during the early 20th century, particularly among African Americans, where it was seen as a symbol of freedom and empowerment, inspired by jazz singer Billie Holiday.
People named Billie are often considered charismatic, adventurous, and spontaneous with a strong sense of independence and a willingness to take risks.
The name Billie has gained popularity in recent years for girls, particularly among those who want a unique and vintage-inspired name. It is often used in creative and artistic circles.