急きゅう発はっ展てん

noun

rapid development; boom; surge

Describes a sudden, sharp growth in development, sales, popularity, or other measurable expansion. Often used in business, technology, and economic contexts.

• この地ち域いきではIT産さん業ぎょうが急きゅう発はっ展てんを遂とげた。

  The IT industry has undergone rapid development in this region.

• 新しん製せい品ひんの売うり上あげが急きゅう発はっ展てんし、記き録ろく的てきな利り益えきを上あげた。

  Sales of the new product boomed, bringing record profits.