noun
Refers to things or people arranged in an orderly row or line, often for display or inspection. Somewhat formal or literary; in casual speech, 並び or 行列 are more common.
新車の斉列が展示場に並んでいた。
An array of new cars was lined up in the exhibition hall.
兵士たちの斉列が広場を行進した。
A parade of soldiers marched across the square.