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English definition of “big”

big

adjective [-er/-est only] (IMPORTANT)   /bɪɡ/ (-gg-)
important, because of being powerful, influential, or having a serious effect: He had a big decision to make about his future. There’s a big difference between starting up a business and just talking about it. The big story in the news this week is the blizzard in the Midwest. We just bought a house, so today’s a big day for us. infml If a product or activity is big, it is extremely popular: Those toys are very big in Japan.
(Definition of big adjective (IMPORTANT) from the Cambridge Academic Content Dictionary © Cambridge University Press)
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