The correct spelling of the word "roger masters" is /ˈrɒdʒə ˈmɑːstəz/. The first word, "roger," is spelled with a silent "d" and pronounced as /ˈrɒdʒə/ (with the stress on the first syllable). The second word, "masters," is spelled with a silent "t" and pronounced as /ˈmɑːstəz/ (with the stress on the second syllable). This phrase is often used as an alternative to the more formal "roger that" in radio communication among pilots, air traffic controllers, and military personnel.