matron

noun

1. 1

   A mature or elderly woman.

2. 2

   A wife or a widow, especially, one who has borne children.

3. 3

   A woman of staid or motherly manners.

4. 4

   A housekeeper, especially, a woman who manages the domestic economy of a public institution.

5. 5

   A senior female nurse in an establishment, especially a hospital or school.

   “the matron of a school or hospital”

6. 6

   A female prison officer.