n.
Function: noun
Date: 1616
1 : a person who has attained majority
2 a : one that is superior in rank, importance, size, or performance <economic power of the oil major s > b : a major musical interval, scale, key, or mode
3 : a commissioned officer in the army, air force, or marine corps ranking above a captain and below a lieutenant colonel
4 a : an academic subject chosen as a field of specialization b : a student specializing in such a field <a history major >
5 plural : major league baseball ― used with the
6 : any of several high-level tournaments in professional golf