Someone who shares in the parenting of a child or children, such as
A godparent.
A divorced or separated parent who shares custody with the other parent.
A parent in a same-sex couple.
To act as a co-parent; to share custody of a child or children; to share in the responsibility of parenting a child or children.
A wife or a widow, especially, one who has borne children.
A mature or elderly woman.
A woman of staid or motherly manners.
A housekeeper, especially, a woman who manages the domestic economy of a public institution.
A senior female nurse in an establishment, especially a hospital or school.
A female prison officer.