luminescence

/ˌluː.məˈnɛs.əns/

//ˌluː.məˈnɛs.əns// noun

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

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

The verdict

“luminescence” is uncommon English (frequency #52,470 among 2,297 “L” headwords), classed as a noun. The kind of spelling people second-guess.

#52,470
frequency rank, English
2,297
“L” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Any emission of light that cannot be attributed merely to the temperature of the emitting body.

Corpus desk

Index EN-luminescence · luminescence · English

luminescence · rank #52,470 · 0 variants · 0 confusables

  • FREQ-RARE #52,470
  • LEN-MEGA 12 letters
  • VOW-5 5 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 2,297
  • PHOTO-FINISH LTV

Nearest frequency peer: LTV (-1 rank slots)

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Long-tail ranks near “luminescence”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “luminescence” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for luminescence
PropertyValue
Headwordluminescence
LanguageEnglish
Part of speechNoun
IPA/ˌluː.məˈnɛs.əns/
Letters12
Frequency rank#52,470
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “luminescence” in English

This scale runs from the tiny cluster of words that carry ordinary speech (left) to the long tail of words almost nobody reaches for (right).luminescencefalls in this rarity band:

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

The axis is logarithmic, with each marked tick roughly ten times rarer than the last. Rare peers in the same band: “LTV” (#52,469), “lune” (#52,471), “Macedon” (#52,472). Among 2,297 “L” headwords, “luminescence” is #52,470. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

luminescence is uncommon English at frequency #52,470 among 2,297 “L” headwords, classed as anoun, transcribed /ˌluː.məˈnɛs.əns/. Rarity is why readers land here mid-draft. Gloss: "Any emission of light that cannot be attributed merely to the temperature of the emitting body.".

luminescence doesn't appear in our generated misspelling index, typically a sign the spelling maps closely to how the word sounds. It is not paired with a close-neighbour confusable in our dataset, suggesting its spelling stands apart enough that readers rarely confuse it with something else.

Etymologically, the entry records: From Latin lumen + -escence. The correct English form is luminescence, spelled L-U-M-I-N-E-S-C-E-N-C-E.

Definition

  1. 1
    Any emission of light that cannot be attributed merely to the temperature of the emitting body.

Etymology

From Latin lumen + -escence.

This word in other languages

luminiscencia(Español)luminescence(Français)Lumineszenz(Deutsch)

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 "luminescence"?
"luminescence" is spelled L-U-M-I-N-E-S-C-E-N-C-E. The IPA pronunciation is /ˌluː.məˈnɛs.əns/.
What does "luminescence" mean?
As a noun, "luminescence" means: Any emission of light that cannot be attributed merely to the temperature of the emitting body.
How do you pronounce "luminescence"?
The IPA (International Phonetic Alphabet) transcription for "luminescence" is /ˌluː.məˈnɛs.əns/. 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 "luminescence"?
From Latin lumen + -escence. 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.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "luminescence", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 12 letters (nearest by frequency rank).

monotheistic#52,504irreversibly#52,414incorrigible#52,402phonetically#52,550

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

Source: FrequencyWords open word-frequency list