A part
列
Shown as a part of 2 words so far, read 2 ways.
れつ 1 word
- 行列ぎょうれつline, procession; matrix (math)
行列 · here “file”
れっ 1 word
- 列車れっしゃtrain (ordinary)
列車 · here “file” (from れつ)
Also written with 列
These words contain the character in their spelling but show no breakdown that names it, so nothing is claimed about its role in them.