big

big is an Adverb

Definition:

[1] Having largeness of size; of much bulk or magnitude; of great size; large. "He`s too big to go in there." Shak.

[2] Great with young; pregnant; swelling; ready to give birth or produce; -- often figuratively. [Day] big with the fate of Cato and of Rome. Addison.

[3] Having greatness, fullness, importance, inflation, distention, etc., whether in a good or a bad sense; as, a big heart; a big voice; big looks; to look big. As applied to looks, it indicates haughtiness or pride. God hath not in heaven a bigger argument. Jer. Taylor.