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English definition of “topic”

topic

noun [C]     /ˈtɒp.ɪk/ US  /ˈtɑː.pɪk/
B1 a subject that is discussed, written about, or studied: Our discussion ranged over various topics, such as acid rain and the hole in the ozone layer.Topics and areas of interest
(Definition of topic noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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