the major leagues

: greater in dignity, rank, importance, or interest

: greater in number, quantity, or extent

: of full legal age

: a person who has attained majority

: one that is superior in rank, importance, size, or performance

: a major musical interval, scale, key, or mode

: to pursue an academic major

: any of various units of distance from about 2.4 to 4.6 statute miles (3.9 to 7.4 kilometers)

: a square league

: an association of nations or other political entities for a common purpose

: an association of persons or groups united by common interests or goals

: a group of sports teams that regularly play one another

: to unite in a league

: to form a league