American Dictionary

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Definition leader in American English

leader noun

[countable] noun
/ˈlidər/
1

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

Example

a political/military/religious leader

Example

the leader of the French delegation

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2

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

Example

She remains the leader after the 17th hole.

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3

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

Example

They have emerged as industry leaders.

Example

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

4

a piece at the start or end of a film or tape with nothing recorded on it

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6

a long shoot growing from the stem of a tree or bush

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8

someone who conducts a band

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8.1

the concertmaster of an orchestra

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Definition leader in American English