一いち列れつ

noun, noun or participle which takes 'suru'

one row; one line; a single file

Refers to a single row or line of people or things. Often used with 並ぶ (to line up) or に並んで (in a row).

• 子こどもたちが一いち列れつに並ならんで歩あるいている。

  The children are walking in a single file.

• 机つくえを一いち列れつに並ならべてください。

  Please line up the desks in one row.