列 (retsu) means “line” | MotiTan Japanese Dictionary

More examples

子どもたちは列に並びます。ko do mo ta chi wa retsu ni nara bi ma su

The children stand in line.

映画館の入口で列に並んでいます。ei ga kan no iri guchi de retsu ni nara n de i ma su

We are standing in line at the entrance to the movie theater.

The word 列 (retsu, "line; row") presents people or things as a sequence arranged in one direction.

行列gyōretsu: A line of people waiting for a service or moving together.
並びnarabi: A row or arrangement of people or things placed in sequence.

人や物が一定の方向に並んだ状態や、その並び。hito ya mono ga it tei no hō kō ni nara n da jō tai ya so no nara bi

The Sino-Japanese noun 列 (retsu, "line; row") is formed from the single character 列, read retsu and meaning an ordered line or row.

In everyday conversation, 列 (retsu, "line; row") often refers to a queue of people, while context can also make it mean a row of objects.