A matron who accompanies a young lady in public, for propriety, or as a guide and protector.

To attend in public places as a guide and protector; to matronize.

The servant, mother, or married female family friend who supervised eligible young girls in public.

one who accompanies and supervises a young woman or gatherings of young people

accompany as a chaperone

a person who accompanies another (usually

a respectable female in charge of an unmarried young lady in public, especially responsible for making sure she behaves herself around the opposite sex.