Left: mouth 口, right: twisted 丩(image of two intertwined threads)
The mouth is distorted when shouting.

Image of a spool with threads in a crosswinding. - (Please notice the similarity with the radical for intertwined threads 丩)
Threads crossing mutually.

Left: twist丩 (= intertwined threads) But here: part of sprout 屮, right: strike 攵 (but here: part ノ of the sprout in a hand
From the sprout the hand collected sth. to receive it.

Left: thread 纟/糸, right: intertwined 丩 (image of twisted threads)
(At the loom:) Threads that are twisted should be corrected.

Left: thread 纟/糸, right: exchange, crossing 交 (six 六 crosses 㐅)
(When making a rope) Threads come into an exchange, when they are twisted together.