luminosity

noun

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

"luminosity" is a 10-letter English headword indexed on PlainSpell.

The verdict

“luminosity” has 15 generated spelling variants in the English index at frequency #32,904. The variants make it a useful spelling check.

#32,904
frequency rank, English
16,425
“L” headwords
15
tracked misspellings

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - the state of being luminous, or a luminous object; brilliance or radiance

Key facts for luminosity
PropertyValue
Headwordluminosity
LanguageEnglish
Part of speechNoun
Letters10
Frequency rank#32,904
Misspellings tracked15
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “luminosity” 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). luminosity 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 15 spelling variants around luminosity, anoun. Corpus frequency is #32,904 among 16,425 “L” headwords. Wiktionary lists 3 senses, so context still picks the gloss.

Our generated misspelling index lists 15 likely wrong-spelling variants for luminosity, with forms such as "lluminosity", "lmuinosity", and "luimnosity". 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, since its spelling is unusual enough that it doesn't cluster with a lookalike.

Etymologically, the entry records: Borrowed from French luminosité or else a native formation from luminous + -ity. The correct English form is luminosity, spelled L-U-M-I-N-O-S-I-T-Y.

Definition

  1. 1
    the state of being luminous, or a luminous object; brilliance or radiance
  2. 2
    the ratio of luminous flux to radiant flux at the same wavelength; the luminosity factor
  3. 3
    The rate at which a star radiates energy in all directions.

Etymology

Borrowed from French luminosité or else a native formation from luminous + -ity.

This word in other languages

luminosidad(Español)luminosité(Français)Helligkeit(Deutsch)

Common misspellings

Also misspelled as:

  • lluminosity
  • lmuinosity
  • luimnosity
  • luminnosity
  • luminoisty
  • luminositty
  • luminosityy
  • luminosiyt
  • luminossity
  • luminostiy
  • luminsoity
  • lumionsity
  • lumminosity
  • lumniosity
  • ulminosity

Misspelling Pattern Breakdown

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

lluminosity1lmuinosity2luimnosity2luminnosity1luminoisty2luminositty1luminosityy1luminosiyt2
Edit distance from "luminosity"

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 "luminosity"?
"luminosity" is spelled L-U-M-I-N-O-S-I-T-Y.
What does "luminosity" mean?
As a noun, "luminosity" means: the state of being luminous, or a luminous object; brilliance or radiance
What are common misspellings of "luminosity"?
Common misspellings include "lluminosity", "lmuinosity", "luimnosity", "luminnosity", "luminoisty". The correct spelling is "luminosity".
What is the origin of the word "luminosity"?
Borrowed from French luminosité or else a native formation from luminous + -ity. 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 “luminosity”

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

  • The one correct English spelling is L-U-M-I-N-O-S-I-T-Y - every other letter order is a misspelling in standard orthography.
  • 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