- A gentlewoman; -- an appellation or courteous form of
address given to a lady, especially an elderly or a married lady; --
much used in the address, at the beginning of a letter, to a woman. The
corresponding word in addressing a man is Sir.
Meaning of 'madam' (Princeton's WordNet)
1 . madam
[ n]
Meaning (1): - a woman of refinement
Example in sentence:
a chauffeur opened the door of the limousine for the grand lady