- major
- ma•jor[[t]ˈmeɪ dʒər[/t]] n.1) mil a commissioned military officer ranking below a lieutenant colonel and above a captain2) one of superior rank, ability, or power in a specified class3) edua) field of study in which a student specializesb) a student specializing in such a field:a history major[/ex]4) a person of full legal age5) mad a major musical interval, chord, or scale6) the majorsspo the major leagues7) greater in size, extent, or amount:a major part[/ex]8) greater in rank or importance:a major talent[/ex]9) cvb of great risk; serious:a major operation[/ex]10) of or pertaining to a majority11) of full legal age12) mad musa) (of an interval) being between the tonic and the second, third, sixth, or seventh degrees of a major scale:a major third[/ex]b) (of a chord) having a major third between the root and the note next above itc) based on a major scale:a major key[/ex]13) edu pertaining to the subject in which a student specializes14) edu to follow an academic major:majoring in physics[/ex]•Etymology: 1350–1400; < AF < L major, comp. of magnus large (cf. majesty) syn: See capital I .
From formal English to slang. 2014.