This is the 4529th most frequent Japanese word.
岩国
Iwakuni: A city in Yamaguchi Prefecture, Japan.
Here, '岩国' is used as a proper noun referring to a specific location in Japan.
岩国は日本の山口県にある都市です。
Iwakuni is a city in Yamaguchi Prefecture, Japan.
In this sentence, '岩国' appears as the context in which the tourist attraction is located.
岩国で有名な観光スポットは錦帯橋です。
A famous tourist spot in Iwakuni is the Kintai Bridge.
In this case, '岩国' functions as the destination for the planned visit.