major

US /ˈmeɪ.dʒɚ/
UK /ˈmeɪ.dʒɚ/
"major" picture
1.

important, serious, or significant

:
This is a major problem that needs immediate attention.
She played a major role in the success of the project.
2.

of legal age; adult

:
You must be major to purchase alcohol.
He is now major and can make his own decisions.
1.

an officer of middle rank in the armed forces, above captain and below lieutenant colonel

:
The Major gave orders to the troops.
She was promoted to Major last year.
2.

a student's main field of study

:
Her major is computer science.
What's your major?
1.

to specialize in a particular subject at a college or university

:
She decided to major in history.
He plans to major in economics.