leader - definition and synonyms

noun [countable] 

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  1. 1
    someone who is responsible for or in control of a group, organization, country etc
    leader of:

    the leader of the French delegation

  2. 2
    a person, animal, or vehicle that is winning at a particular time during a race or competition

    She remains the leader after the 17th hole.

  3. 3
    a person, company, or product that is more successful, popular, or advanced than others in a particular area of activity

    They have emerged as industry leaders.

    leader in:

    He is widely acknowledged to be a world leader in his field.

    See also market leader
See also