Dear Madam or Sir.
- One used in the salutation of a formal letter.Dear Madam.
- One used before the title of an office or position.Madam President.
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.
Right this way, madam.