illumination

/ɪˌlumɪˈneɪʃən/

//ɪˌlumɪˈneɪʃən// noun

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

"illumination" is a 12-letter English headword indexed on PlainSpell.

The verdict

“illumination” is a moderately-common English word, ranked #18,344 in English word frequency and used as a noun.

#18,344
frequency rank, English
12
letters
16
tracked misspellings
1
confusable pair

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - The act of illuminating, or supplying with light; the state of being illuminated.

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

illumination vs illuminating
83% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for illumination
PropertyValue
Headwordillumination
LanguageEnglish
Part of speechNoun
IPA/ɪˌlumɪˈneɪʃən/
Letters12
Frequency rank#18,344
Misspellings tracked16
Confusable pairs1
SourceWiktionary (kaikki.org)

Where “illumination” 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). illumination lands here:

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

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

Spelling & Dictionary Insight

The English entry for illumination is 12 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /ɪˌlumɪˈneɪʃən/. Corpus data places it at rank #18,344 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 5 distinct senses for this headword, so context determines which meaning a reader should apply.

Our generated misspelling index lists 16 likely wrong-spelling variants for illumination, with forms such as "illmuination", "illuimnation", and "illumiantion". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. It also participates in 1 confusable-pair relationship, "illuminating", since the words sound or look close enough that writers reach for the wrong one mid-sentence.

Etymologically, the entry records: Borrowed from Middle French illumination, from Late Latin illuminatio, from Latin illumino. Equivalent to illuminate + -ion. The correct English form is illumination, spelled I-L-L-U-M-I-N-A-T-I-O-N.

Definition

  1. 1
    The act of illuminating, or supplying with light; the state of being illuminated.
  2. 2
    Festive decoration of houses or buildings with lights.
  3. 3
    Adornment of books and manuscripts with colored illustrations. See illuminate (transitive verb).
  4. 4
    Splendour; brightness.
  5. 5
    Enlightening influence; inspiration.

Etymology

Borrowed from Middle French illumination, from Late Latin illuminatio, from Latin illumino. Equivalent to illuminate + -ion.

Synonyms

lumination

This word in other languages

iluminación(Español)illumination(Français)Beleuchtung(Deutsch)iluminação(Português)

Common misspellings

Also misspelled as: illmuination,illuimnation,illumiantion,illuminaiton,illuminasion,illuminatino,illuminationn,illuminatoin,illuminattion,illuminnation,illumintaion,illummination,illumniation,ilulmination,ilumination,lilumination

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of illumination - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.

illmuination2illuimnation2illumiantion2illuminaiton2illuminasion1illuminatino2illuminationn1illuminatoin2
Edit distance from "illumination"

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 "illumination"?
"illumination" is spelled I-L-L-U-M-I-N-A-T-I-O-N. The IPA pronunciation is /ɪˌlumɪˈneɪʃən/.
What does "illumination" mean?
As a noun, "illumination" means: The act of illuminating, or supplying with light; the state of being illuminated.
What words are commonly confused with "illumination"?
"illumination" is commonly confused with "illuminating". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "illumination"?
The IPA (International Phonetic Alphabet) transcription for "illumination" is /ɪˌlumɪˈneɪʃən/. 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 "illumination"?
Borrowed from Middle French illumination, from Late Latin illuminatio, from Latin illumino. Equivalent to illuminate + -ion. 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 “illumination”

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

  • The one correct English spelling is I-L-L-U-M-I-N-A-T-I-O-N - every other letter order is a misspelling in standard orthography.
  • Say it as /ɪˌlumɪˈneɪʃən/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “illuminating” - see the side-by-side comparison. illumination vs illuminating
  • Browse more English words and confusable pairs in the same reference. English words
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