A part
郵便
Shown as a part of 1 word so far, read one way.
ゆうびん 1 word
- 郵便局ゆうびんきょくpost office
郵便局 · here “postal service”
Also written with 郵便
These words contain the character in their spelling but show no breakdown that names it, so nothing is claimed about its role in them.