A part
数
Shown as a part of 3 words so far, read one way.
すう 3 words
- 小数しょうすうfraction (part of), decimal
小数 · here “number”
- 数学すうがくmathematics
数学 · here “number”
Also written with 数
These words contain the character in their spelling but show no breakdown that names it, so nothing is claimed about its role in them.