What is prefix Mme?

"Mme" is the abbreviation for Madame, the French equivalent of Mrs. or Ms. It is used as a polite title before the name of a married or unmarried woman.

For example:

* Mme. Curie (Marie Curie, the famous scientist)

* Mme. Dupont (Mrs. Dupont)

It's important to note that in modern French, using "Mme" is becoming less common and people often prefer to be addressed by their first name.