Archipelago is a set of islands near the coast of a continent. The example is Zanzibar archipelago near the coast of East Africa. Alternately, Malay archipelago is a grand archipelago consisting of Malaysia and Indonesia.
An archipelago is a group of islands clustered together in a body of water. It usually consists of a chain of islands or cluster of islands that are geographically close to each other. Examples include the Philippines, Indonesia, and the Hawaiian Islands.