Major meaning

a commissioned military officer in the United States Army or Air Force or Marines; below lieutenant colonel and above captain

British statesman who was prime minister from 1990 until 1997 (born in 1943)

a university student who is studying a particular field as the principal subject

“she is a linguistics major”

the principal field of study of a student at a university

“her major is linguistics”

have as one's principal field of study

“She is majoring in linguistics”

of greater importance or stature or rank

“a major artist”

“a major role”

greater in scope or effect

“a major contribution”

“a major improvement”

greater in number or size or amount

“a major portion (a majority) of the population”

“Ursa Major”

of the field of academic study in which one concentrates or specializes

“his major field was mathematics”

(of a scale or mode) having half steps between the third and fourth degrees and the seventh and eighth degrees

“major scales”

“the key of D major”

of greater seriousness or danger

“a major earthquake”

“a major hurricane”

of full legal age

of the elder of two boys with the same family name

“Jones major”