天てん文もん学がく的てき数すう字じ

noun

astronomical figure; astronomically large number

Figurative expression for an extremely large number, often used in contexts like budgets, debts, or statistics.

• 国こっ家か予よ算さんは天てん文もん学がく的てき数すう字じにのぼる。

  The national budget reaches an astronomical figure.

• そのプロジェクトの費ひ用ようは天てん文もん学がく的てき数すう字じだった。

  The cost of that project was an astronomical number.