- The definition of madam is a respectful title for a woman, or a woman who runs a house of prostitution.
- When you want to greet a woman formally who has just arrived at your restaurant for brunch, this is an example of a time when you might say "Good morning madam."
- When you are writing a formal business letter to a woman from whom you are trying to solicit business, this is an example of a situation where you might say "Dear Madam."
- A woman who is running a brothel where prostitutes work for money is an example of a madam.
Used by arrangement with John Wiley & Sons, Inc.
noun Abbr. Mdm.
- pl. Mes·dames Used formerly as a courtesy title before a woman's given name but now used only before a surname or title indicating rank or office: Madam Ambassador.
- Used as a salutation in a letter: Dear Madam or Sir.
- madam Used as a form of polite address for a woman: Right this way, madam.
- madam The mistress of a household.
- madam A woman who manages a brothel. See Usage Note at mistress.
Origin: Middle English madame, from Old French ma dame; see Madame.