Imperial Household
Noun
こうしつ
皇室はここ最近、かなり大変な状況に陥っています。
The Imperial household has been going through a very difficult time lately.
The emperor's room is more than just a room. It's quite big and nice and luxurious. It is the imperial palace.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.