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leader

 
 
/ˈliːdər/ noun [C]

Definition

PERSON IN CONTROL a person in control of a group, country, or situation: a religious leader Who's the leader of the Democratic Party in the Senate?
WINNER someone or something that is winning during a race or other situation where people are competing: He's fallen two laps behind the leaders. Microsoft is a world leader in software design.
(Definition of leader noun from the Cambridge Learner's Dictionary © Cambridge University Press)

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