This is the 7867th most frequent Japanese word.
四川
"Sichuan" - A province in China.
The word '四川' here is used as a proper noun to refer to the Sichuan Province in China.
四川省は中国の有名な観光地です。
Sichuan Province is a famous tourist destination in China.
In this sentence, '四川' is used adjectivally to describe the type of cuisine originating from Sichuan Province, i.e., Sichuan cuisine.
麻婆豆腐や担々麺は四川料理の代表的な料理です。
Mapo tofu and Dan Dan noodles are representative dishes of Sichuan cuisine.
Here, '四川' is used as a component of the phrase '四川風', signifying a style or influence from Sichuan, commonly in terms of culinary flavors.