What is Dame ?
Dame is (noun) 1. (in a pantomime) an old woman played by a male actor The dame was played by a famous boxer. 2. US a woman (informal.) Who’s that dame I saw you with last night? 3. a title given to some women (NOTE: Dame is the equivalent to ‘Sir’ for men. As a title, it is written before the woman’s Christian name, followed by the surname: Dame Judy Dench.)
source: Easier English, Student Dictionary Upper Intermediate Level