大おおきく

adverb

greatly; significantly; on a large scale; widely

Adverbial form of 大きい, used to describe doing something in a big, extensive, or grand manner. Often appears with verbs like 変わる, 広げる, 見せる, etc.

• 彼かれの考かんがえ方かたは大おおきく変かわった。

  His way of thinking changed greatly.

• 事じ業ぎょうを大おおきく広ひろげる計けい画かくだ。

  It's a plan to expand the business on a large scale.