lesson
1. les.son \'les-*n\ n [ME, fr. OF lec~X, fr. LL lection-, lectio, fr. L, act of r]eading, fr. lectus, pp. of legere to read - more at LEGEND 1: a passage from sacred writings read in a service of worship 2a: a piece of instruction : TEACHING; specif : a reading o r exercise to be studied by a pupil 2b: something learned by study or experience 3a: a division of a course of instruction 3b: an instructive example; specif : REPRIMAND 2. lesson \'les-nin, -*n-in\ vt or les.son.ing 1: to give a lesson to : INSTRUCT 2: LECTURE, REBUKE
Webster's English Dictionary