Synonym: adult, considerable, grand, great, grown-up, important, large, mature. Antonym: little, small. Similar words: bigger, a big deal, a big shot, ambiguous. Meaning: [bɪg] 
adj. 1. above average in size or number or quantity or magnitude or extent 2. significant 3. conspicuous in position or importance 4. very intense 5. loud and firm 6. prodigious 7. (of animals) fully developed 8. marked by intense physical force 9. feeling self-importance 10. exhibiting self-importance 11. generous and understanding and tolerant 12. given or giving freely 13. in an advanced stage of pregnancy. adv. 1. extremely well 2. in a boastful manner 3. on a grand scale 4. in a major way.
adj. 1. above average in size or number or quantity or magnitude or extent 2. significant 3. conspicuous in position or importance 4. very intense 5. loud and firm 6. prodigious 7. (of animals) fully developed 8. marked by intense physical force 9. feeling self-importance 10. exhibiting self-importance 11. generous and understanding and tolerant 12. given or giving freely 13. in an advanced stage of pregnancy. adv. 1. extremely well 2. in a boastful manner 3. on a grand scale 4. in a major way. 
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151. There used to be a big and beautiful garden at the back of their house.
152. I mean, my nose is quite big but my Dad's got a whopper.
153. The 46-year-old author has finally hit the big time .
154. The size of your dreams must always exceed your current capacity to achieve them. If your dreams do not scare you,(http://sentencedict.com/big.html) they are not big enough.
155. It is not easy to meet each other in such a big world.
156. The big computer companies are very worried about industrial espionage.
157. A person in the world must have his own business , no matter big or small . Only with recognition from the society can your life is meaningful.
158. Be realistic you can't expect a big salary at eighteen.
159. The men at City Hall, sniffing at anything too ideological, insist that big cuts are just not practical.
160. His accession to the important post was a big event.