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a French/English/maths/history lesson
I'd like to talk to you at the end of the lesson.
Jo's father found out that she'd been skipping lessons.
One of the most important lessons in life is the value of friendship.
the lessons of war/history/experience
I needed a lesson in humility and I got it.
The second goal was a lesson in how not to defend a free kick.
I hope you've learnt a lesson from this, young man!
People get into debt at such a young age that they have learnt their lesson by the time they're 23.
That girl needs teaching a lesson.
Let that be a lesson to you not to play with matches!
This is the British English definition of lesson. View American English definition of lesson.
the part of the nucleus of an atom that has no electrical charge