1.  sergeant major(n = noun.person) command sergeant major - a noncommissioned officer serving as chief administrative officer of a headquarters unit of the Army;
is a kind of sergeant

2.  sergeant major(n = noun.animal) abudefduf saxatilis - large blue-grey black-striped damselfish; nearly worldwide;
is a kind of damselfish, demoiselle
is a member of abudefduf, genus abudefduf

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.

astrantia major, buck sergeant, c major, c major scale, canis major, clusia major, color sergeant, desk sergeant, drum major, epilepsia major, first sergeant, gunnery sergeant, john major, john r. major, john roy major, major, major affective disorder, major axis, major depressive episode, major diatonic scale, major fast day, major form class, major general, major key, major league, major leaguer, major lobe, major mode, major planet, major power, major premise, major premiss, major scale, major suit, major surgery, major term, major tranquilizer, major tranquilliser, major tranquillizer, master sergeant, musculus pectoralis major, musculus rhomboideus major, musculus teres major, orderly sergeant, pectoralis major, pipe major, plantago major, police sergeant, publius cornelius scipio africanus major, rhomboideus major muscle, scale of c major, scipio africanus major, sergeant, sergeant at arms, sergeant first class, sergeant fish, staff sergeant, technical sergeant, teres major, teres major muscle, thalassaemia major, thalassemia major, top sergeant, ursa major, variola major, variola major virus, vinca major, vis major