This is the 2475th most frequent Japanese word.
個室
Private room.
Here, '個室' refers to a private space reserved for individual use, often in a hotel or restaurant setting.
私は個室を予約しました。
I booked a private room.
In this usage, '個室' indicates a single room designed for exclusive use by a patient to provide privacy and comfort.
病院では個室があるので安心です。
There are private rooms in the hospital, so it is reassuring.
Here, '個室' is used to describe distinct, separate rooms within a living space, typically for individual residents or purposes.