Noun

• S: (n) lesson (a unit of instruction) "he took driving lessons"
• S: (n) example, deterrent example, lesson, object lesson (punishment intended as a warning to others) "they decided to make an example of him"
• S: (n) moral, lesson (the significance of a story or event) "the moral of the story is to love thy neighbor"
• S: (n) lesson (a task assigned for individual study) "he did the lesson for today"