1.  major(n = noun.person) - a commissioned military officer in the United States Army or Air Force or Marines; below lieutenant colonel and above captain;

2.  major(n = noun.person) john major, john r. major, john roy major - British statesman who was prime minister from 1990 until 1997 (born in 1943);

3.  major(n = noun.person) - a university student who is studying a particular field as the principal subject; "she is a linguistics major"
Derived form verb major₁

4.  major(n = noun.cognition) - the principal field of study of a student at a university; "her major is linguistics"
Derived form verb major₁

   major(v = verb.cognition) - have as one's principal field of study; "She is majoring in linguistics"
Derived form noun major₃, noun major₄
Sample sentences: Somebody ----s PP

1.  major(a = adj.all) - of greater importance or stature or rank; "a major artist"; "a major role"; "major highways"
Antonym: minor

2.  major(a = adj.all) - greater in scope or effect; "a major break with tradition"; "a major contribution"; "a major improvement"; "a major misunderstanding"
Antonym: minor

3.  major(a = adj.all) - greater in number or size or amount; "a major portion (a majority) of the population"; "a major portion of the winnings"; "Ursa Major"
Antonym: minor
Derived form noun majority₁, noun majority₂

4.  major(a = adj.all) - of the field of academic study in which one concentrates or specializes; "his major field was mathematics"
Antonym: minor

5.  major(a = adj.all) - of a scale or mode; "major scales"; "the key of D major"
Antonym: minor

6.  major(a = adj.all) - of greater seriousness or danger; "a major earthquake"; "a major hurricane"; "a major illness"
Antonym: minor

7.  major(a = adj.all) - of full legal age;
Antonym: minor
Derived form noun majority₃

8.  major(s = adj.all) - of the elder of two boys with the same family name; "Jones major"

1.  Greater in number, quantity, or extent; as, the major part of the assembly; the major part of the revenue; the major part of the territory. [1913 Webster]

2.  Of greater dignity; more important. Shak. [1913 Webster]

3.  Of full legal age; adult. [1913 Webster]

4.  Greater by a semitone, either in interval or in difference of pitch from another tone. [1913 Webster]

1.  An officer next in rank above a captain and next below a lieutenant colonel; the lowest field officer. [1913 Webster]

2.  A person of full age. [1913 Webster]

3.  That premise which contains the major term. It its the first proposition of a regular syllogism; as: No unholy person is qualified for happiness in heaven [the major]. Every man in his natural state is unholy [minor]. Therefore, no man in his natural state is qualified for happiness in heaven [conclusion or inference]. [1913 Webster]

4.  A mayor. Bacon. [1913 Webster]

major, adj., n., & v.
--adj.
1 important, large, serious, significant (a major road; a major war; the major consideration must be their health).
2 (of an operation) serious or life-threatening.
3 Mus. a (of a scale) having intervals of a semitone between the third and fourth, and seventh and eighth degrees. b (of an interval) greater by a semitone than a minor interval (major third). c (of a key) based on a major scale, tending to produce a bright or joyful effect (D major).
4 of full age.
5 Brit. (appended to a surname, esp. in public schools) the elder of two brothers or the first to enter the school (Smith major).
6 Logic a (of a term) occurring in the predicate or conclusion of a syllogism. b (of a premiss) containing a major term.
--n.
1 Mil. a an army officer next below lieutenant-colonel and above captain. b an officer in charge of a section of band instruments (drum major; pipe major).
2 a person of full age.
3 US a a student's special subject or course. b a student specializing in a specified subject (a philosophy major).
4 Logic a major term or premiss.
--v.intr. (foll. by in) US study or qualify in a subject (majored in theology).

Idiom:
major axis the axis of a conic, passing through its foci. major-general an officer next below a lieutenant-general. major league US a league of major importance in baseball etc. major part (often foll. by of) the majority. major piece Chess a rook or queen. major planet Jupiter, Saturn, Uranus, or Neptune. major prophet Isaiah, Jeremiah, Ezekiel, or Daniel. major suit Bridge spades or hearts.

Derivative:
majorship n.

Etymology:
ME f. L, compar. of magnus great

N  superiority, majority, greatness, advantage, pull, preponderance, preponderation, vantage ground, prevalence, partiality, personal superiority, nobility, Triton among the minnows, primus inter pares, nulli secundus, captain, crackajack, supremacy, preeminence, lead, maximum, record, trikumia, climax, culmination, transcendence, ne plus ultra, lion's share, Benjamin's mess, excess, surplus, (redundancy), superior, greater, major, higher, exceeding, great, distinguished, ultra, vaulting, more than a match for, supreme, greatest, utmost, paramount, preeminent, foremost, crowning, first-rate, unrivaled peerless, matchless, none such, second to none, sans pareil, unparagoned, unparalleled, unequalled, unapproached, unsurpassed, superlative, inimitable facile princeps, incomparable, sovereign, without parallel, nulli secundus, ne plus ultra, beyond compare, beyond comparison, culminating, transcendent, transcendental, plus royaliste que le Roi, more catholic than the Pope increased, enlarged, beyond, more, over, over the mark, above the mark, above par, upwards of, in advance of, over and above, at the top of the scale, at its height, eminently, egregiously, preeminently, surpassing, prominently, superlatively, supremely, above all, of all things, the most, to crown all, kat exochin, par excellence, principally, especially, particularly, peculiarly, a fortiori, even, yea, still more, I shall not look upon his like again, deos fortioribus addesse.

N  master, padrone, lord, lord paramount, commander, commandant, captain, chief, chieftain, sirdar, sachem, sheik, head, senior, governor, ruler, dictator, leader, boss, cockarouse, sagamore, werowance, lord of the ascendant, cock of the walk, cock of the roost, gray mare, mistress, potentate, liege, liege lord, suzerain, sovereign, monarch, autocrat, despot, tyrant, oligarch, crowned head, emperor, king, anointed king, majesty, imperator, protector, president, stadholder, judge, ceasar, kaiser, czar, tsar, sultan, soldan, grand Turk, caliph, imaum, shah, padishah, sophi, mogul, great mogul, khan, lama, tycoon, mikado, tenno, inca, cazique, voivode, landamman, seyyid, Abuna, cacique, czarowitz, grand seignior, prince, duke, archduke, doge, elector, seignior, marland, margrave, rajah, emir, wali, sheik nizam, nawab, empress, queen, sultana, czarina, princess, infanta, duchess, margravine, czarevna, czarita, maharani, rani, rectrix, regent, viceroy, exarch, palatine, khedive, hospodar, beglerbeg, three-tailed bashaw, pasha, bashaw, bey, beg, dey, scherif, tetrarch, satrap, mandarin, subahdar, nabob, maharajah, burgrave, laird, collector, commissioner, deputy commissioner, woon, the authorities, the powers that be, the government, staff, etat major, aga, official, man in office, person in authority, sircar, sirkar, Sublime Porte, marshal, field marshal, marechal, general, generalissimo, commander in chief, seraskier, hetman, lieutenant general, major general, colonel, lieutenant colonel, major, captain, centurion, skipper, lieutenant, first lieutenant, second lieutenant, sublieutenant, officer, staff officer, aide-de-camp, brigadier, brigade major, adjutant, jemidar, ensign, cornet, cadet, subaltern, noncommissioned officer, warrant officer, sergeant, sergeant major, color sergeant, corporal, corporal major, lance corporal, acting corporal, drum major, captain general, dizdar, knight marshal, naik, pendragon, mayor, mayoralty, prefect, chancellor, archon, provost, magistrate, syndic, alcalde, alcaid, burgomaster, corregidor, seneschal, alderman, councilman, committeeman, councilwoman, warden, constable, portreeve, lord mayor, officer, dewan, fonctionnaire, admiral, admiralty, rear admiral, vice admiral, port admiral, commodore, captain, commander, lieutenant, ensign, skipper, mate, master, officer of the day, OD, navarch, da locum melioribus, der Furst ist der erste Diener seines Staats, the prince is the first servant of his state, lord of thy presence and no land beside.