Residence, Stay
noun, verbal noun
You're a resident and you exist in the place you're residing in. That means you have residence.
ちゅうざい
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
海外駐在員と一緒に外国に来ている妻は、駐在さんと呼ばれることがある。
A wife of an expatriate employee who came abroad with him is sometimes called Mrs. Expatriate.