This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. A large group of islands: the Philippine archipelago.

n. A sea, such as the Aegean, containing a large number of scattered islands.

n. A group of islands.

n. Something scattered around like an archipelago.

n. The Grecian Archipelago, or Ægean Sea, separating Greece from Asia Minor. It is studded with a vast number of small islands.

n. Hence: Any sea or broad sheet of water interspersed with many islands or with a group of islands.

n. [capitalized] Originally and specifically, the sea which separates Greece from Asia Minor, otherwise called the Ægean sea, studded with a number of small islands. Hence, generally

n. Any body of water abounding with islands, or the islands themselves collectively.

n. a group of many islands in a large body of water

"This archipelago is one of our nations leading tourist attractions and you can find a lot to do in its capitol of Honolulu."

archipelagic   

archipelagoes   

set   

lumbago   

peninsula    mainland    coastline    hemisphere    Highlands    Lowlands    promontory    continent    steppe    seaport