This is the 5010th most frequent Japanese word.
群島
Archipelago.
The word '群島' is used to refer to a group of islands or an archipelago in this sentence.
その群島は太平洋に位置しています。
The archipelago is located in the Pacific Ocean.
Here, '群島' is used in the term '群島国家', describing a nation consisting of an archipelago.
日本は群島国家と言われています。
Japan is often referred to as an archipelagic country.
In this sentence, '群島' describes a scenic geographic feature consisting of multiple islands.