WordadiósMeaninggoodbyePart of speechinterjectionPronunciationCourseSpanish (Latin America)LessonFormal and informal you (tú vs. usted)Usages of adiósAdiós, señor.Goodbye, sir.Hola y adiós.Hello and goodbye.Buenas noches, señora. Adiós.Good night, ma'am. Goodbye.—Buenas noches. —Adiós.—Good night. —Goodbye.