Synonyms for Great:

adj.

all (adjective)
outstanding.
enthusiastic (adjective)
born-again, fervent, hooked, motivated, wholehearted, mad about something.
excellent (adjective)
cool, tiptop, excellent, exceptional, super, surpassing.
excellent, skillful (adjective)
able, awesome, bad, exceptional, fantastic, first-rate, good, heavy, marvelous, surpassing, terrific, wonderful.
healthy (adjective)
well.
important (adjective)
major.
important, celebrated (adjective)
august, capital, commanding, dignified, distinguished, eminent, exalted, excellent, famous, fine, glorious, grand, heroic, honorable, illustrious, impressive, lofty, major, noble, notable, noted, outstanding, puissant, regal, renowned, royal, stately, superior, Famed.
large (adjective)
ample, awesome, baggy, big, bulky, capacious, cavernous, colossal, comprehensive, copious, elephantine, enormous, expansive, extensive, gargantuan, generous, giant, gigantic, grand, grandiose, huge, humongous, immense, impressive, large, lofty, magnificent, majestic, mammoth, massive, princely, prodigious, roomy, sizable, soaring, spacious, towering, tremendous, vast, voluminous, numerous.
noble (adjective)
aristocratic, august, baronial, celebrated, courtly, dignified, distinguished, heroic, imperial, imposing, kingly, knightly, ladylike, lordly, magisterial, noble, patrician, regal, royal, sovereign, stately, queen-like, grand, majestic, princely.
powerful (adjective)
autocratic, formidable, high-powered, influential, powerful.
size (adjective)
broad, chunky, corpulent, dimensional, high, long, measurable, portly, wide, amplitudinous, big, bulky, expansive, extensive, large, magnificent, sizable, voluminous.
super (adjective)
topnotch.
superior (adjective)
capital.
very large (adjective)
ample, big, bulky, colossal, enormous, extensive, gigantic, high, huge, humongous, immense, long, mammoth, numerous, prodigious, towering, tremendous, vast, voluminous.

n.

ably, fabulously, fantastically, superlatively, to perfection, well, like a dream, to the best of your ability. basically, essentially, healthy, importantly, in essence, large-scale, mainly, tidy, at the end of the day, not just any..., the fact (of the matter) is. absolutely, agreed, exactly, famous, illustrious, knowledge, notable, noted, of course, precisely, preeminent, prestigious, redoubtable, renowned, respect, right, yes, Famed, O.K.. a-one, ace, banner, blue-ribbon, boss, brag, champion, excellent, fine, first-rate, prime, quality, splendid, superb, superior, terrific, tiptop, top, topnotch, widely, first class, topflight, tophole. able, capable, cool, divine, dreamy, fabulous, fantastic, fantastical, gifted, glorious, hot, marvelous, ripping, sensational, super, transliterate, wonderful. adaptive, addictive, babyish, born, classy, constitutionally, flawed, flexible, gone, parturient, reproduction, Clingy, Expecting, badass. attractive, cheerful, enjoyable, nice, pleasant, pleasing, pleasurable, relaxing, restful. authority figure, eminence, figure, leading light, magnate, mogul, mover and shaker, prime mover, a force to be reckoned with. awful, bad, bleak, disagreeable, hard, harsh, objectionable, unappealing, unattractive, unpleasant. basic, elementary. infamous, legendary, notorious, well-known, the one and only. celebrity, icon, personality, public figure, star, vip, superstar, living legend, sleb, the glitterati. king-size. boom, fascination, fashion, favourite, hot spot, magnet, popularity, winner, HIT, fashion statement. common, crested, fledged, flightless, full-fledged, gregarious, lesser, migratory, webbed. court, hall, house, The. early, historical, historically, retrospective, date back to, in retrospect, rewrite history, the annals of something, those were the days. eminent (noun)
commanding, conspicuous, elevated, exalted, fabled, fabulous, famous, glorious, honorable, illustrious, noted, obscure, peerless, preeminent, puissant, renowned, retired, unrivaled, Famed.
excellent (noun)
excellent, exceptional, first-rate, superb.
extensive (noun)
inclusive, sweeping.
great (noun)
avid, big, bully, capital, corking, cracking, dandy, distinguished, eager, eminent, enceinte, enthusiastic, expectant, extraordinary, good, gravid, groovy, heavy, high, important, keen, large, major, majuscule, neat, nifty, not bad, of import, outstanding, peachy, pregnant, slap-up, smashing, swell, uppercase, with child, zealous, bang up.
large (noun)
big, large, vast.

Other synonyms:

a-one, ably, agreed, blue-ribbon, crested, exactly, fabulously, fantastically, fledged, flightless, glorious, gregarious, king-size, large-scale, migratory, of course, parturient, powerful, precisely, prestigious, ripping, superlatively, topnotch, webbed, well, widely, Famed, topflight, tophole, badass. absolutely, first-rate, full-fledged, illustrious, noted, renowned, splendid, terrific, yes, Expecting, The, first class, O.K.. champion, lesser, marvelous, preeminent, prime, redoubtable, tiptop. dreamy, fabulous, fine, healthy, notable, sensational, tidy, wonderful. boss, hall, right. divine, hot. fantastical, gone. quality. fantastic. court. house. bang-up
bang up.
considerable
good.
first class
excellent.
renowned
famous.
Other relevant words:
banner, bully, conspicuous, dandy, elevated, eminent, exalted, excellent, fantastic, fine, gravid, heavy, hot, important, keen, nifty, outstanding, peachy, powerful, ripping, slap-up, smashing, splendid, super, superb, superior, swell, terrific, tidy, wonderful.

Usage examples for great

  1. " Then you are in a great way indeed. – The Memoires of Casanova, Complete The Rare Unabridged London Edition Of 1894, plus An Unpublished Chapter of History, By Arthur Symons by Jacques Casanova de Seingalt
  2. He knew that he was a great man. – The Last Shot by Frederick Palmer
  3. This is a great town for pretty girls. – In a Little Town by Rupert Hughes