Affiliation, Belong To
noun, verbal noun, の adjective
Your place of belonging describes your affiliation. It’s where you belong to. This is often used to describe a person’s affiliation or membership to a particular organization, team, or group.
しょぞく
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
私は芸能事務所には所属していません。
I am not affiliated with an entertainment agency.
コウイチはポートランドの剣道チームに所属しています。
Koichi belongs to a kendo team in Portland.
病欠のときは、念の為、所属部署に診断書を提出しておいた方がいいよ。
When you're absent due to illness, you should turn in a doctor's note to your department just in case.