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Definition of leading light noun from the Oxford Advanced Learner's Dictionary

leading light

noun
 
/ˌliːdɪŋ ˈlaɪt/
 
/ˌliːdɪŋ ˈlaɪt/
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  1. an important, active or respected person in a particular area of activity
    • She's one of the leading lights in the opera world.
See leading light in the Oxford Advanced American Dictionary
trait
noun
 
 
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