The Amiah ("Standing Prayer"), also called the Shmona Esre ("The Eighteen Blessings"), is the central prayer of the Jewish liturgy. As Judaism's prayer par excellence, the Amidah is often designated simply as tfila ("prayer") in Rabbinic literature. Observant Jews recite the Amidah at each prayer service of the day—morning, afternoon, and evening. The Amidah is also the center of the Mussaf ("Additional") service, which is recited on Shabbat (Jewish Sabbath), Rosh Chodesh (New Moon), and Festivals, after the morning Torah reading.