Saint John River saint·john·ri·ver uncommon noun 1. a river that rises in Maine and flows northeastward through New Brunswick to empty into the Bay of Fundy SynonymsSaint JohnSaint John RiverSt. JohnSt. John River Related words Broader terms river Parts MaineNew Brunswick WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
