一いち限げん目め

noun

first period; first class

Used in school contexts to refer to the first class of the day.

• 一いち限げん目めは数すう学がくの授じゅ業ぎょうです。

  The first period is math class.

• 一いち限げん目めに遅ち刻こくしてしまった。

  I was late for the first period.