[on-tair-ee-oh] 
| 1. | a province in S Canada, bordering on the Great Lakes. 8,131,618; 412,582 sq. mi. (1,068,585 sq. km). Capital: Toronto. |
| 2. | Lake, a lake between the NE United States and S Canada, between New York and Ontario province: the smallest of the Great Lakes. 193 mi. (310 km) long; 7540 sq. mi. (19,530 sq. km). |
| 3. | a city in SW California, E of Los Angeles. 88,820. |
[on-tar-ik] , adjective, noun | Ontario, Lake The smallest of the Great Lakes, between southeast Ontario, Canada, and northwest New York. The St. Lawrence Seaway and Welland Ship Canal connect with the lake to afford passage by oceangoing vessels to the other Great Lakes. |
Province in central Canada, bordered by Hudson Bay and James Bay to the north; Quebec to the east; the St. Lawrence River, Lake Ontario, Lake Erie, Lake Huron, Lake Superior, and Minnesota to the south; and Manitoba to the west. Its capital and largest city is Toronto.
Note: The Canadian side of Niagara Falls is in southern Ontario.
Note: Ottawa, Canada's capital, is in southeastern Ontario.
Note: Ontario is the most heavily industrialized, populous, and prosperous province in Canada.
Lake located between Ontario, Canada, and New York.
Note: Smallest and lowest in elevation of the Great Lakes.
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