A group of five large interconnected lakes in central North America, consisting of Lakes Superior, Michigan, Huron, Erie, and Ontario, and constituting the largest area of fresh water in the world. Lake Michigan is wholly within the US, and the others lie on the Canada–US border. Connected to the Atlantic Ocean by the St Lawrence Seaway, the Great Lakes form an important commercial waterway.
Definition of Great Lakes in US English:
Great Lakes
proper nounɡreɪtˈleɪks
A group of five large interconnected lakes in central North America that consist of lakes Superior, Michigan, Huron, Erie, and Ontario, and constitute the largest area of fresh water in the world. Lake Michigan is wholly within the US, and the others lie on the Canada–US border. Connected to the Atlantic Ocean by the St. Lawrence Seaway, the Great Lakes form an important commercial waterway.