A diminutive of the female given names Mildred, Millicent, Emily, Amelia, or Camilla, also used as a formal given name.

(informal, Northern Ireland, dated, 19th century, derogatory or endearing) A mill worker, usually a young working-class woman working in the factories of Ireland's linen industry.

(informal, derogatory or endearing) A harshly-spoken working-class woman, often unemployed.