Definition of Madam

Noun: madam ma-dum

A woman of refinement
"a chauffeur opened the door of the limousine for the grand madam";
- dame, ma'am, lady, gentlewoman
A woman who runs a house of prostitution
- brothel keeper
[Brit] A bossy or impertinent girl
"a proper little madam, the kind of girl that could drive a man crazy with desire...and then just plain crazy"
Polite form of address for a woman
- ma'am