This is the 381st most frequent Japanese word.
福岡
Fukuoka: A major city in Japan, located on Kyushu Island.
In this sentence, '福岡' functions as a proper noun, specifically the name of a place, a city in Japan.
福岡は日本の九州地方にあります。
Fukuoka is located in the Kyushu region of Japan.
Here, '福岡' indicates the location where an activity occurs, functioning as a place name in the context of describing someone's activities.
私の友人は福岡で大学に通っています。
My friend attends university in Fukuoka.
In this sentence, '福岡' describes the origin of an item, showcasing its role as the source location in the description of events.