What is the meaning of big?

adjective

• Above average in size or number or quantity or magnitude or extent.
  • usage: "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"
  • synonyms: large
• Significant.
  • usage: "graduation was a big day in his life"
• Very intense.
  • usage: "a bad headache"; "in a big rage"; "had a big (or bad) shock"; "a bad earthquake"; "a bad storm"
  • synonyms: bad
• Loud and firm.
  • usage: "a big voice"; "big bold piano sounds"
• Conspicuous in position or importance.
  • usage: "a big figure in the movement"; "big man on campus"; "he's very large in financial circles"; "a prominent citizen"
  • synonyms: large, prominent
• Prodigious.
  • usage: "big spender"; "big eater"; "heavy investor"
  • synonyms: heavy
• Exhibiting self-importance.
  • usage: "big talk"
  • synonyms: boastful, braggart, bragging, braggy, cock-a-hoop, crowing, self-aggrandizing, self-aggrandising
• Feeling self-importance.
  • usage: "too big for his britches"; "had a swelled head"; "he was swelled with pride"
  • synonyms: swelled, vainglorious
• Of animals. ( fully developed)
  • usage: "an adult animal"; "a grown woman"
  • synonyms: adult, full-grown, fully grown, grown, grownup
• Marked by intense physical force.
  • usage: "a big wind"
• Generous and understanding and tolerant.
  • usage: "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"
  • synonyms: large, magnanimous
• Given or giving freely.
  • usage: "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"
  • synonyms: bighearted, bounteous, bountiful, freehanded, handsome, giving, liberal, openhanded
• In an advanced stage of pregnancy.
  • usage: "was big with child"; "was great with child"
  • synonyms: enceinte, expectant, gravid, great, large, heavy, with child

adverb

• Extremely well.
  • usage: "his performance went over big"
• In a boastful manner.
  • usage: "he talked big all evening"
  • synonyms: boastfully, vauntingly, large
• On a grand scale.
  • usage: "think big"
• In a major way.
  • usage: "the play failed big at the box office"