Saint Lawrence River saint·law·ren·ceriver uncommon noun 1. a North American river; flows into the Gulf of Saint Lawrence and the North Atlantic SynonymsSaint LawrenceSaint Lawrence RiverSt. LawrenceSt. Lawrence River Related words Broader terms river Parts United StatesCanada WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
