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ground

noun [U] (AREA OF KNOWLEDGE)
 
 
/ɡraʊnd/

Definition

C2 an area of knowledge or experience: When the conversation turns to politics he's on familiar ground (= he knows a lot about this subject). Once we'd found some common ground (= things we both knew about) we got on very well together. The lectures covered a lot of ground (= included information on many different subjects). I enjoyed her first novel, but I felt in the second she was going over the same ground (= dealing with the same area of experience).Topics and areas of interest
(Definition of ground noun (AREA OF KNOWLEDGE) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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