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English definition of “lead”

lead

adjective [before noun]
 
 
/liːd/
most important among a group of people, products, etc.: a lead company/product The company's lead product for lung and certain blood cancers is in Phase II trials in humans. The lead negotiator for the teachers' union said he wasn't surprised by the vote.play a lead role in sth They have played a lead role in the fast and furious growth of e-commerce.
(Definition of lead adjective from the Cambridge Business English Dictionary © Cambridge University Press)
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