一いち号ごう

noun

number one; item 1

Used as a label for the first in a numbered series, such as a building, room, document, or list item.

• 会かい議ぎは一いち号ごう室しつで行おこないます。

  The meeting will be held in Room 1.

• 資し料りょうの一いち号ごうを確かく認にんしてください。

  Please check item 1 of the document.