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major

MAY-jur/ˈmeɪd͡ʒɚ/SayMAY-juhUK/ˈmeɪ.d͡ʒə(ɹ)/[ˈmæɪ̯d͡ʒə(ɹ)]

Noun pluralmajors

Verbmajors, majoring, majored

28 meanings of major

Practice

  1. 1
    adjectivebefore a noun
    Very important, big, or serious.

    Like the main road through a city: bigger and busier than the small side streets.

    Money was a major reason for their argument.

    Traffic is a major problem in big cities.

    UsageSay play a major role in something.

    Similarimportant, significant, big, key, leading

    Oppositeminor, unimportant, insignificant

  2. 2
    main subjectnounAustraliaCanadaNew ZealandUScountable
    The main subject a student chooses to study at college.

    Like choosing one subject to become really good at while in school.

    Her major is biology.

    He changed his major after the first year.

    UsageSay my major is biology, or I major in biology.

    Similarcourse

    Oppositeminor

  3. 3
    army officernouncountable
    A military officer who ranks above a captain but below a lieutenant colonel.

    Like a manager who stands above the workers but below the big boss.

    The major gave the order to advance.

    She was promoted to major after ten years of service.

    UsageWrite Major with a capital before a name: Major Smith.

    Note
  4. 4
    adjectivebefore a noun
    Larger in number or amount than the rest.

    The major part of the job is already done.

    We spent the major part of the day waiting.

    UsageSay the major part of something.

    Similarmain

    Oppositeminor

  5. 5
    college studentnounAustraliaCanadaNew ZealandUScountable
    A student who has chosen a certain subject as their main study.

    Like calling someone a 'piano student' because that is mainly what they learn.

    She is a biology major.

    Most history majors take a research class.

    UsageSay a biology major.

    Note
  6. 6
    study mainlyverbintransitive
    To study a subject as your main one at college.

    She wants to major in history.

    I plan to major in art next year.

    UsageSay major in a subject.

    Similarspecialize, concentrate

    Oppositeminor

  7. 7
    very seriousadjectivebefore a noun
    Very serious and possibly putting someone's life in danger.

    Like a big, dangerous operation instead of a small, simple one.

    She needed major surgery on her heart.

    The crash left him with major injuries.

    UsageSay major surgery. The opposite is minor.

    Similarserious, grave

    Oppositeminor

    Note

Practice

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

Origin

From Latin maior, meaning 'greater'. It came into English through Middle English.

Checked 31 Oct 2026 · 2 facts