Service of worship
The three daily prayers in Judaism are Shaharit (Shacharit) for morning prayer, Minha (Mincha) for afternoon prayer and Arvit or Maariv for evening prayer.  The basics of each prayer consist of the Shema (although the afternoon prayer does not require Shema), and the Amida (standing prayer) which is the definitive prayer of each service.  Fundamentally, when a Jew says "prayer", he or she means Amida.  Everything else (which is largely Psalms) is just detail.