Ontario

/ɒnˈtɛə.ɹi.əʊ/

//ɒnˈtɛə.ɹi.əʊ// name

By · According to Wiktionary data (CC BY-SA) ·

"ontario" is a 7-letter English headword indexed on PlainSpell.

The verdict

“Ontario” has 9 generated spelling variants in the English index at frequency #5,068. The variants make it a useful spelling check.

#5,068
frequency rank, English
15,494
“O” headwords
9
tracked misspellings

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A province in eastern Canada. Capital: Toronto.

Key facts for Ontario
PropertyValue
HeadwordOntario
LanguageEnglish
Part of speechProper noun
IPA/ɒnˈtɛə.ɹi.əʊ/
Letters7
Frequency rank#5,068
Misspellings tracked9
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “Ontario” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). Ontario lands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 9 spelling variants around Ontario (IPA /ɒnˈtɛə.ɹi.əʊ/), aproper noun. Corpus frequency is #5,068 among 15,494 “O” headwords. Wiktionary lists 14 senses, so context still picks the gloss.

Our generated misspelling index lists 9 likely wrong-spelling variants for Ontario, with forms such as "notario", "onatrio", and "onntario". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. This headword has no recorded confusable partner, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.

Etymologically, the entry records: Probably from Wyandot ontari꞉io (literally “great lake”). If so, ultimately from Proto-North Iroquoian *-õtaɹeʔ and Proto-Iroquoian * -õːtaɹiʔ. The correct English form is Ontario, spelled O-N-T-A-R-I-O.

Definition

  1. 1
    A province in eastern Canada. Capital: Toronto.
  2. 2
    A large lake in North America, between the Canadian province of Ontario and the American state of New York; one of the Great Lakes; Lake Ontario.
  3. 3
    A village in the Cayo District, Belize.
  4. 4
    A number of places in the United States:
  5. 5
    A number of places in the United States:
  6. 6
    A number of places in the United States:
  7. 7
    A number of places in the United States:
  8. 8
    A number of places in the United States:
  9. 9
    A number of places in the United States:
  10. 10
    A number of places in the United States:
  11. 11
    A number of places in the United States:
  12. 12
    A number of places in the United States:
  13. 13
    A number of places in the United States:
  14. 14
    A number of places in the United States:

Etymology

Probably from Wyandot ontari꞉io (literally “great lake”). If so, ultimately from Proto-North Iroquoian *-õtaɹeʔ and Proto-Iroquoian * -õːtaɹiʔ.

This word in other languages

Ontario(Español)Ontario(Français)Ontario(Deutsch)Ontário(Português)

Common misspellings

Also misspelled as:

  • notario
  • onatrio
  • onntario
  • ontairo
  • ontaroi
  • ontarrio
  • ontraio
  • onttario
  • otnario

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of Ontario - counted as single-character edits (an insertion, a deletion, or a substituted letter). The larger the bar, the easier the typo is to spot; one-edit slips are the ones that sneak past readers.

notario2onatrio2onntario1ontairo2ontaroi2ontarrio1ontraio2onttario1
Edit distance from "Ontario"

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "Ontario"?
"Ontario" is spelled O-N-T-A-R-I-O. The IPA pronunciation is /ɒnˈtɛə.ɹi.əʊ/.
What does "Ontario" mean?
As a proper noun, "Ontario" means: A province in eastern Canada. Capital: Toronto.
What are common misspellings of "Ontario"?
Common misspellings include "notario", "onatrio", "onntario", "ontairo", "ontaroi". The correct spelling is "Ontario".
How do you pronounce "Ontario"?
The IPA (International Phonetic Alphabet) transcription for "Ontario" is /ɒnˈtɛə.ɹi.əʊ/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "Ontario"?
Probably from Wyandot ontari꞉io (literally “great lake”). If so, ultimately from Proto-North Iroquoian *-õtaɹeʔ and Proto-Iroquoian * -õːtaɹiʔ. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Using “Ontario”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is O-N-T-A-R-I-O - every other letter order is a misspelling in standard orthography.
  • Say it as /ɒnˈtɛə.ɹi.əʊ/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Browse more English words and confusable pairs in the same reference. English words

Same frequency band

Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list