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lesson - definition and synonyms


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noun [countable] lesson pronunciation in British English /ˈles(ə)n/
Word Forms
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  1. 1
    a period of time in which students are taught about a subject in school. The usual American word is class
    a French/English/maths/history lesson
    I’d like to talk to you at the end of the lesson.
    skip/miss a lesson (=not go to a lesson when you should): Jo’s father found out that she’d been skipping lessons.
  2. 2
    something that you learn from life, an event, or an experience
    One of the most important lessons in life is the value of friendship.
    the lessons of war/history/experience
    1. a.
      a punishment or bad experience that teaches you something
      lesson in: I needed a lesson in humility and I got it.
      The second goal was a lesson in how not to defend a free kick.
      learn a lesson: I hope you’ve learnt a lesson from this, young man!
      learn your lesson: People get into debt at such a young age that they have learnt their lesson by the time they’re 23.
      teach someone a lesson (=punish someone): That girl needs teaching a lesson.
      let that be a lesson to you: Let that be a lesson to you not to play with matches!
  3. 3
    a section in a book that teaches you about a particular subject
    Lesson 5 is all about the subjunctive.


a course of study which is much shorter than a university course and focuses on the skills you need for a job, especially computer-related skills

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an ancient Roman system of underfloor heating, used to heat houses with hot air; from the Latin 'hypocaustum'

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