Ontario

[on-tair-ee-oh]

noun

1. a province in southern Canada, bordering on the Great Lakes. 412,582 square miles (1,068,585 square kilometers). Toronto.

2. Lake Ontario, a lake between the northeastern United States and southern Canada, between New York and Ontario province: the smallest of the Great Lakes. 193 miles (310 kilometers) long; 7,540 square miles (19,530 square kilometers).

3. a city in southwestern California, east of Los Angeles.

Ontario

/ ɒnˈtɛərɪəʊ /

noun

1. Abbreviation: Ont..  ON. a province of central Canada: lies mostly on the Canadian Shield and contains the fertile plain of the lower Great Lakes and the St Lawrence River, one of the world's leading industrial areas; the second largest and the most populous province. Capital: Toronto. Pop: 12 392 721 (2004 est). Area: 891 198 sq km (344 092 sq miles)

2. a lake between the US and Canada, bordering on New York State and Ontario province: the smallest of the Great Lakes; linked with Lake Erie by the Niagara River and Welland Canal; drained by the St Lawrence. Area: 19 684 sq km (7600 sq miles)

Ontario

1. 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.

Ontario is the most heavily industrialized, populous, and prosperous province in Canada.

The Canadian side of Niagara Falls is in southern Ontario.

Ottawa, Canada's capital, is in southeastern Ontario.

Other Word Forms

• Ontarian adjective
• Ontaric adjective

Example Sentences

Room modules were made in a factory outside of Ontario, Canada, at the same time that foundation work was occurring in 29 Palms.

From Los Angeles Times

He was a member of the Oneida Nation, part of the Six Nations Reserve in southern Ontario.

From BBC

It has yet to be verified on the ground and many questions remain, the professor at Western University in London, Ontario, said.

From BBC

Immigration and Customs Enforcement officers were conducting raids in Ontario on July 8 while wearing government-issued equipment, including law enforcement vests, the release states.

From Los Angeles Times

A resident of Ontario, California, Wen has been detained since December 2024.

From BBC