A part
割
Shown as a part of 3 words so far, read one way.
わり 3 words
- 割引わりびきdiscount
割引 · here “proportion”
- 役割やくわりassigning (allotment of) parts, role, duties
役割 · here “divide”
Also written with 割
These words contain the character in their spelling but show no breakdown that names it, so nothing is claimed about its role in them.