Illinois

/ˌɪləˈnɔɪ/

//ˌɪləˈnɔɪ// name

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

"illinois" is a 8-letter English headword indexed on PlainSpell.

The verdict

“Illinois” has 9 generated spelling variants in the English index at frequency #3,370. The variants make it a useful spelling check.

#3,370
frequency rank, English
17,902
“I” headwords
9
tracked misspellings

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A state of the United States, named for the people.

Key facts for Illinois
PropertyValue
HeadwordIllinois
LanguageEnglish
Part of speechProper noun
IPA/ˌɪləˈnɔɪ/
Letters8
Frequency rank#3,370
Misspellings tracked9
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “Illinois” 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). Illinois 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 Illinois (IPA /ˌɪləˈnɔɪ/), aproper noun. Corpus frequency is #3,370 among 17,902 “I” headwords. Wiktionary lists 11 senses, so context still picks the gloss.

Our generated misspelling index lists 9 likely wrong-spelling variants for Illinois, with forms such as "ililnois", "ilinois", and "illinios". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. Our confusable-pair dataset has no match for it, which tends to mean the word is visually distinctive enough to stand on its own.

Etymologically, the entry records: From French Illinois, an adaptation of an Algonquian (perhaps Ojibwe) name derived from Miami ilenweewa (“he speaks the regular way”). The correct English form is Illinois, spelled I-L-L-I-N-O-I-S.

Definition

  1. 1
    A state of the United States, named for the people.
  2. 2
    A confederation of Algonquian tribes who lived in the Mississippi River Valley.
  3. 3
    The Algonquian language spoken by these tribes; the Miami-Illinois language.
  4. 4
    A number of rivers in the United States:
  5. 5
    A number of rivers in the United States:
  6. 6
    A number of rivers in the United States:
  7. 7
    A number of rivers in the United States:
  8. 8
    A number of townships in the United States:
  9. 9
    A number of townships in the United States:
  10. 10
    A number of townships in the United States:
  11. 11
    Ellipsis of University of Illinois at Urbana–Champaign.

Etymology

From French Illinois, an adaptation of an Algonquian (perhaps Ojibwe) name derived from Miami ilenweewa (“he speaks the regular way”).

This word in other languages

Illinois(Español)Illinois(Français)Illinois(Deutsch)Illinois(Português)

Common misspellings

Also misspelled as:

  • ililnois
  • ilinois
  • illinios
  • illinnois
  • illinoiss
  • illinosi
  • illionis
  • illniois
  • lilinois

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of Illinois - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.

ililnois2ilinois1illinios2illinnois1illinoiss1illinosi2illionis2illniois2
Edit distance from "Illinois"

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 "Illinois"?
"Illinois" is spelled I-L-L-I-N-O-I-S. The IPA pronunciation is /ˌɪləˈnɔɪ/.
What does "Illinois" mean?
As a proper noun, "Illinois" means: A state of the United States, named for the people.
What are common misspellings of "Illinois"?
Common misspellings include "ililnois", "ilinois", "illinios", "illinnois", "illinoiss". The correct spelling is "Illinois".
How do you pronounce "Illinois"?
The IPA (International Phonetic Alphabet) transcription for "Illinois" is /ˌɪləˈnɔɪ/. 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 "Illinois"?
From French Illinois, an adaptation of an Algonquian (perhaps Ojibwe) name derived from Miami ilenweewa (“he speaks the regular way”). 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 “Illinois”

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

  • The one correct English spelling is I-L-L-I-N-O-I-S - every other letter order is a misspelling in standard orthography.
  • Say it as /ˌɪləˈnɔɪ/ (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