1.
a row, a line, single file
A single line of people or things arranged in a row. Used for both horizontal rows and queues.
一列に並ぶ。
To line up in a single row.
子どもたちが一列になって歩いた。
The children walked in single file.
桜の木が道に沿って一列に植えられている。
Cherry trees are planted in a row along the road.
一列 means a single row or line of people or objects arranged in sequence.
WORD FORMATION:
一 (one) + 列 (row, line). The same pattern forms 二列 (two rows), 三列 (three rows), etc.
COMMON COLLOCATIONS:
- 一列に並ぶ: to line up in a single row
- 一列になって歩く: to walk in single file
- 一列になる: to form a single line
- 一列縦隊: single-file column (military/formal)
USAGE:
Common in instructions at schools, events, and public spaces. 一列に並んでください (please line up in a single row) is a standard phrase.
RELATED:
- 列: row, line, queue
- 行列: queue, procession
- 整列: lining up in an orderly fashion