The word madame is known throughout the world, and everywhere it is pronounced acceptably-except among English-speaking people. It would be said to translate literally as "my lady," but so-called literal translations are usually only mistranslations. Anyhow, the word has no real equivalent in modern English.
Foley, L. (1974). Don't Call Me "Madam". Reading Horizons: A Journal of Literacy and Language Arts, 14 (3). Retrieved from https://scholarworks.wmich.edu/reading_horizons/vol14/iss3/2