蓋ふたを開あける

expression, ichidan verb

reveal the truth; start something; see the outcome

Idiomatic use: to bring something hidden into the open, to begin an event or process, or to finally see the results. Often implies that the real situation becomes clear after the 'lid' is removed.

• 蓋ふたを開あけてみたら、意い外がいな事じ実じつがわかった。

  When we opened the lid, we discovered an unexpected truth.

• 新しん企き画かくの蓋ふたを開あける時ときが来きた。

  The time has come to launch the new project.

• 蓋ふたを開あけてみると、結けっ果かは予よ想そう以い上じょうだった。

  When we looked at the results, they were better than expected.

expression, ichidan verb

open (a theater, show, etc.)

Idiomatic use for the opening of a theater, performance, or similar event. Less common than other idiomatic senses.

• 新あたらしい劇げき場じょうが来らい月げつ蓋ふたを開あける。

  The new theater will open next month.