Rhode Island, island, 15 mi (24 km) long and 5 mi (8 km) wide, S R.I., at the entrance to Narragansett Bay. It is the largest island in the state, with steep cliffs and excellent beaches. Known to the Native Americans and early colonials as Aquidneckəkwĭdˈnĕk, it was renamed Rhode Island (probably after the isle of Rhodes) in 1644. Newport, Middletown, and Portsmouth are on the island.
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