Madonna can refer to different things depending on the context. Here are some possible meanings:

• Madonna (person): Madonna Louise Ciccone is an American singer, songwriter, and actress, known as the "Queen of Pop".
• Madonna (art): In art, a Madonna is a representation of Mary, either alone or with her child Jesus. These images are central icons for both the Catholic and Orthodox churches).
• Madonna (title): Madonna is an Italian title of formal address to a woman.
• Madonna (term): Madonna can also be used as a term of respectful address, similar to "lady".

Its important to note that the term "Madonna" is often capitalized when referring to the person or the art icon, but not necessarily when used as a title or a term of address.