noun
A direct loanword from English, used for Western-style castles or in brand names. For traditional Japanese castles, 城 (しろ) is more common.
イギリス旅行で古いキャッスルをいくつか見学した。
On my trip to England, I visited several old castles.
このホテルはキャッスルをイメージしたデザインだ。
This hotel has a design inspired by a castle.