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1. Large or big relative to something else
   - larger

1. Above average in size or number or quantity or magnitude or extent
   "set out for the big city"; "a big barn"; "big businesses"; "a big expenditure"; "a big group of scientists"
   - large
    
2. Significant
   "graduation was a big day in his life"
    
3. Very intense
   "in a big rage"; "had a big shock"
   - bad
    
4. Loud and firm
   "a big voice"; "big bold piano sounds"
    
5. Conspicuous in position or importance
   "a big figure in the movement"; "big man on campus"
   - large, prominent
    
6. Prodigious
   "big spender"; "big eater"
   - heavy
    
7. Exhibiting self-importance
   "big talk"
   - boastful, braggart, bragging, braggy, cock-a-hoop, crowing, self-aggrandizing, self-aggrandising [Brit]
    
8. Feeling self-importance
   "too big for his britches"
   - swelled, vainglorious
    
9. (of animals) fully developed
   - adult, full-grown, fully grown, grown, grownup
    
10. Marked by intense physical force
    "a big wind"
     
11. Generous and understanding and tolerant
    "a heart big enough to hold no grudges"; "that's very big of you to be so forgiving"
    - large, magnanimous
     
12. Given or giving freely
    "was a big tipper"
    - bighearted, bounteous, bountiful, freehanded, handsome, giving, liberal, openhanded
     
13. In an advanced stage of pregnancy
    "was big with child"
    - enceinte, expectant, gravid, great, large, heavy, with child

See also: ample, astronomic, astronomical, banging, bear-sized, biggish, bigness, blown-up, bouffant, broad, Brobdingnagian, bulky, capacious, colossal, conspicuous, cosmic, deep, double, elephantine, enlarged, enormous, epic, extended, extensive, full-size, galactic, gargantuan, generous, giant, gigantic, ginormous [Brit], grand, great, heavy, heroic, huge, hulking, hulky, humongous, humungous, immense, important, intemperate, intense, jumbo, king-size, king-sized, large-mouthed, larger-than-life, large-scale, largish, lifesize, life-size, life-sized, loud, macro, macroscopic, macroscopical, mammoth, man-size, man-sized, massive, mature, medium-large, monolithic, monstrous, monumental, mountainous, of import, outsize, outsized, overlarge, oversize, oversized, plumping, pregnant, prodigious, proud, puffy, queen-size, queen-sized, rangy, sizable, size, sizeable, spacious, stupendous, super, thumping, titanic, too large, tremendous, vast, volumed, voluminous, walloping, whacking [Brit], whopping, wide, wide-ranging

Antonym: little

Encyclopedia: Big Big, The Musical Big, Bad Rubber Piggy