A part
内
Shown as a part of 4 words so far, read one way.
ない 4 words
- 内線ないせんphone extension
内線 · here “internal”
- 家内かない(one's own) wife
家内 · here “inside”
- 内緒ないしょsecrecy, privacy, secret
内緒 · here “inside”
- 内蔵ないぞうinternal organ; built-in
内蔵 · here “inside”
Also written with 内
These words contain the character in their spelling but show no breakdown that names it, so nothing is claimed about its role in them.