major in

major in something

to specialize in a certain subject in college. I majored in history in college. I want to major in math.

major in

To complete a long-term course of study in some subject that is one's main focus: In high school I was interested in math, but in college I majored in history.

Common Names:

Name	Pronounced	Usage
Marks	[ma:ks]
FÉLicienne	-	French
Garnett	['ga:nit]
Oliver	AHL-ə-vər (English), AW-lee-ver (German), O-lee-ver (Finnish)	English, German, Swedish, Norwegian, Danish, Finnish, Estonian, Serbian, Croatian, Macedonian, Czech
Cyrus	SIE-rəs (English)	English, Biblical, Biblical Latin, Ancient Greek (Latinized)
Aherne	[ə'hɜ:n]