加入 かにゅう
kanyū

Noun
Suru Verb

1. joining (a club, organization, etc.); becoming a member; entry; admission; subscription; affiliation; signing (e.g. a treaty); taking out (insurance)

Intransitive
まさかの ときのために かれ保険 ほけん加入 かにゅうした。
masakano tokino tameni karewa hokenni kanyū shita.
He insured himself for a rainy day.