Ocean State oceans·tate uncommon noun 1. a state in New England; one of the original 13 colonies; the smallest state SynonymsRhode IslandLittle RhodyOcean StateRI Related words Broader terms American state Parts New England Part of Brown UniversityProvidenceNewportNarragansett Bay WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.