a rank of officer in the army and the US air force, above captain and below lieutenant colonel

a major key, interval, or scale

a major organization or competition

the majors have swept up the smaller independent companies in licensing deals

it's not unreasonable to believe someone can win all four majors

the oil majors had a profit bonanza

a student's principal subject or course

many students would ignore courses outside their major

a major term or premise

South was anxious to mention his four-card major and bid one spade

a goal

specialize in (a particular subject) at college or university

I was trying to decide if I should major in drama or English