Meaning of “matron” - Learner’s Dictionary

matron

noun [ C ] uk us /ˈmeɪtrən/
NURSE UK old-fashioned

a female nurse in a school, or a female nurse who is in charge of other nurses in a hospital

WOMAN US

a married woman, especially one who is old or a widow (= woman whose husband has died)

PRISON/SCHOOL US

a woman who is a manager at some hospitals, schools, prisons, etc

(Definition of “matron” from the Cambridge Learner’s Dictionary © Cambridge University Press)