一いち堂どうに会かいする

expression, suru verb (special)

assemble; gather together; meet in one place

Formal expression for people gathering in a single location, often for a meeting or event. Used with する.

• 全ぜん国こくの代だい表ひょうが一いち堂どうに会かいして会かい議ぎを開ひらいた。

  Representatives from across the country assembled in one place and held a meeting.

• 卒そつ業ぎょう生せいが久ひさしぶりに一いち堂どうに会かいした。

  The alumni gathered together for the first time in a long while.