This is the 4295th most frequent Japanese word.
内装
Interior design; interior decoration.
In this sentence, '内装' (naisou) refers to the interior design or decoration of the room.
この部屋の内装はとてもお洒落で快適です。
The interior design of this room is very stylish and comfortable.
Here, '内装' is used to indicate the interior features or decoration that might be subject to modification.
内装の変更には追加費用がかかる場合があります。
Changes to the interior may incur additional costs.
'内装' in this sentence highlights the traditional Japanese-style interior design of the house.