There are 2 definitions of Ontario in English:

Ontario1

Line breaks: On|tario
Pronunciation: /ɒnˈtɛːrɪəʊ
 
/
A province of eastern Canada, between Hudson Bay and the Great Lakes; population 12,160,282 (2006); capital, Toronto. It was settled by the French and English in the 17th century, ceded to Britain in 1763, and became one of the original four provinces in the Dominion of Canada in 1867.

Derivatives

Ontarian

adjective & noun
More example sentences
  • Only eight per cent of Quebec's residents get fluoridated water in their pipes, including those of Quebec City, Trois Rivières and Sherbrooke - versus about two-thirds of Ontarians.
  • Here, one can witness the poisons draining the life out of the people, one at a time. The Canadian and Ontarian governments have done nothing to address the poisoning and the ecological devastation caused by the clearcutting.
  • Transit-reliant renters naturally produce far fewer GHGs than home-owning drivers, but the average Ontarian still emits 5.7 tonnes of the stuff every year.

Definition of Ontario in:

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Word of the day humoresque
Pronunciation: ˌ(h)yo͞oməˈresk
noun
a short, lively piece of music

There are 2 definitions of Ontario in English:

Ontario2

Syllabification: On·tar·i·o
Pronunciation: /änˈte(ə)rēˌō/

Entry from US English dictionary

A commercial city in southwestern California, east of Los Angeles; population 171,691 (est. 2008).

Definition of Ontario in: