big in WordNet English dictionary

1. (of animals) fully developed
   "an adult animal"; "a grown woman"
   adult  big  full-grown  fully grown  grown  grownup 
   
2. very intense
   "a bad headache"; "in a big rage"; "had a big (or bad) shock"; "a bad earthquake"; "a bad storm"
   bad  big 
   
3. above average in size or number or quantity or magnitude or extent
   "a large city"; "set out for the big city"; "a large sum"; "a big (or large) barn"; "a large family"; "big businesses"; "a big expenditure"; "a large number of newspapers"; "a big group of scientists"; "large areas of the world"
   large  big 
   
4. conspicuous in position or importance
   "a big figure in the movement"; "big man on campus"; "he's very large in financial circles"; "a prominent citizen"
   big  large  prominent 
   
5. given or giving freely
   "was a big tipper"; "the bounteous goodness of God"; "bountiful compliments"; "a freehanded host"; "a handsome allowance"; "Saturday's child is loving and giving"; "a liberal backer of the arts"; "a munificent gift"; "her fond and openhanded grandfather"
   big  bighearted  bounteous  bountiful  freehanded  handsome  giving  liberal  openhanded 
   
6. generous and understanding and tolerant
   "a heart big enough to hold no grudges"; "that's very big of you to be so forgiving"; "a large and generous spirit"; "a large heart"; "magnanimous toward his enemies"
   big  large  magnanimous 
   
7. marked by intense physical force
   "a big wind"
   big 
   
8. significant
   "graduation was a big day in his life"
   big 
   
9. prodigious
   "big spender"; "big eater"; "heavy investor"
   big  heavy 
   
10. loud and firm
    "a big voice"; "big bold piano sounds"
    big 
    
11. in an advanced stage of pregnancy
    "was big with child"; "was great with child"
    big  enceinte  expectant  gravid  great  large  heavy  with child 
    
12. feeling self-importance
    "too big for his britches"; "had a swelled head"; "he was swelled with pride"
    big  swelled  vainglorious 
    
13. exhibiting self-importance
    "big talk"
    boastful  braggart  bragging  braggy  big  cock-a-hoop  crowing  self-aggrandizing  self-aggrandising 
    

1. in a boastful manner
   "he talked big all evening"
   boastfully  vauntingly  big  large  boastfully  vauntingly  big  large 
   
2. in a major way
   "the play failed big at the box office"
   big  big 
   
3. on a grand scale
   "think big"
   big  big 
   
4. extremely well
   "his performance went over big"
   big  big