Definition of "big"
big1
/bɪɡ/
adjective
comparative bigger, superlative biggest
(informal, transitive with of) Mature, conscientious, principled; generous.
(informal) Important or significant.
(of a city) Populous.
(informal) Used as an intensifier, especially of negative-valence nouns
(informal, with on) Enthusiastic (about).
big2
/bɪɡ/
verb
third-person singular simple present bigs, present participle bigging, simple past and past participle bigged