“Archipelago” in Japanese
Short answer
Archipelago in Japanese is “列島” (rettou). Full meaning: archipelago, chain of islands.
Other ways to say “Archipelago” in Japanese
諸島
shotou archipelago, group of islands
多島海
tatoukai archipelago
群島
guntou island group, archipelago
アーキペラゴ
aakiperago archipelago
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