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lecture

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noun [countable] British English pronunciation: lecture /ˈlektʃə(r)/ 
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singularlecture
plurallectures
  1. 1
    a talk to a group of people about a particular subject, especially at a college or university

    The course will be taught through a series of lectures and seminars.

    lecture on:

    a lecture on Dickens

    give a lecture:

    Tomorrow she will be giving a lecture at London University.

  2. 2
    showing disapproval a long serious talk that criticizes you or warns you about something, especially when this is annoying

    I don't need any lectures from you about being late!

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