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English definition of “lecture”

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lecture

noun [C]  /ˈlek·tʃər/ us  

lecture noun [C] (FORMAL TALK)

a formal, prepared talk given to a group of people, esp. students: a lecture on astronomy

lecture noun [C] (CRITICISM)

a serious talk given to criticize someone or give someone advice: She gave him a lecture about his table manners.
lecturer
noun [C]  /ˈlek·tʃər·ər/ us  

lecture

verb [I/T]  /ˈlek·tʃər/ us  

lecture verb [I/T] (TALK FORMALLY)

to give a formal, prepared talk to a group of people, esp. students: [I] She’s lecturing on the geology of the region.

lecture verb [I/T] (CRITICIZE)

to give someone a serious talk to criticize or give advice to that person: [T] He lectured me on the need to keep accurate records.
(Definition of lecture from the Cambridge Academic Content Dictionary © Cambridge University Press)
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