Millie vs. Milly
Millienoun
A mill worker, usually a young working-class woman working in the factories of Ireland's linen industry.
Millienoun
A harshly-spoken working-class woman, often unemployed.
Millie
Millie is a feminine given name or diminutive form of various other given names, such as Emily, Millicent, Mildred, Camilla or sometimes Amelia.
Milly
Milly is a feminine given name, sometimes used as a short form (hypocorism) of Mildred, Amelia, Emily, etc.
