lesson

n. 1 spell of teaching. 2 (in pl.; foll. By in) systematic instruction. 3 thing learnt by a pupil. 4 experience that serves to warn or encourage (let that be a lesson). 5 passage from the bible read aloud during a church service. [french leon from latin lego lect-]

n. Anything read or recited to a teacher by a pupil or learner; something, as a portion of a book, assigned to a pupil to be studied or learned at one time.