大だい代だい

noun

main telephone number

Abbreviation of 代表電話番号 (だいひょうでんわばんごう). Used in business contexts to refer to a company's main switchboard number.

• 会かい社しゃの大だい代だいはパンフレットに書かいてあります。

  The company's main telephone number is written in the brochure.