What is defined as the moral lesson or message in Greek tragedies?

The term that best represents the moral lesson or message in Greek tragedies is catharsis. In the context of Aristotle's definition of tragedy, catharsis refers to the emotional purification or emotional release that spectators experience through the unfolding of the tragic events on stage. This process often leads the audience to reflect on the themes presented, such as moral dilemmas, the nature of fate, and human suffering, thus imparting a deeper understanding or insight about life.

While fate, hubris, and tragedy itself are significant themes and elements in Greek tragedies, they do not specifically denote the moral lesson. Fate refers to the predetermined course of events that characters cannot escape; hubris indicates excessive pride leading to a character's downfall; and tragedy itself is a genre or form of storytelling that embodies these themes. However, catharsis is specifically the emotional and psychological experience that encompasses the moral insights gained by the audience through the characters' suffering and the unfolding of the plot.