DictionaryAI

leader

noun
LEE-dur/ˈli.dɚ/UKLEE-duh/ˈliː.də(ɹ)/

Pluralleaders

21 meanings of leader

Practice

  1. 1
    person in chargenouncountable
    A person who guides or is in charge of a group, organization or country.

    Like the captain of a ship who decides where it goes.

    The team chose a new leader after the vote.

    Good leaders listen to everyone before deciding.

    UsageSay the leader of a group. After elect or appoint, you can drop "a" or "the": we elected her team leader.

    Note
  2. 2
    best in fieldnouncountable
    A person or company that is the best or most successful in a field.

    Like the runner who is winning a race.

    That company is the world leader in electric cars.

    Our school is a leader in science education.

    UsageSay the leader in something: the world leader in electric cars.

    Similarfrontrunner, pacesetter

    Oppositelaggard

  3. 3
    party chiefnouncountable
    A person who is in charge of a political party or its elected members.

    Like the captain of a sports team who speaks for the players.

    The party elected a new leader last spring.

    The party chose a new leader after losing the election.

    UsageSay as leader, with no "a" or "the", to mean while doing the job.

    Note
  4. 4
    head musiciannouncountable
    The musician leading a band, choir or orchestral section, or, in Britain, the main first violinist of an orchestra.

    The band leader counted everyone in before the song.

    Our leader played the first notes on her violin, and the rest of the orchestra followed her.

    UsageOften in a phrase: band leader, section leader, leader of the cellos.

    Note

Practice

Can you tell the meanings of leader apart? Answer 3 quick questions from this page, or write your own sentence and AI will check it.

Origin

From Old English lǣdere, meaning "leader." It comes from "lead" plus "-er."

Checked 5 Nov 2026 · 3 facts