一大

major, great

i t͡ɕ i d a̠ i
noun Rare #41,330
major, great Usually used before another noun, as in 一大ニュース (major news) or 一大事業 (a major undertaking).
JA: その発見は一大ニュースになった。
EN: That discovery became major news.

我々は一大危機に直面している

We are facing a major crisis.

彼の死はわがにとって一大損失であった

His death was a great loss to our country.

映画産業一大ビジネスになった

The film industry has become a major business.