a period of instruction
a reading or exercise to be studied
an instructive or warning example
the lessons of history
something, esp a piece of wisdom, learned by study or experience
He has not learned the lessons of life who does not every day surmount a fear — Ralph Waldo Emerson
a passage from sacred writings read in a service of worship
[Middle English via Old French and late Latin from Latin lection-, lectio act of reading, from legere to read]