lightness
/ˈlaɪtnəs/
"lightness" is a 9-letter English headword indexed on PlainSpell.
The verdict
“lightness” is a moderately-common English word, ranked #30,119 in English word frequency and used as a noun.
- #30,119
- frequency rank, English
- 9
- letters
- 13
- tracked misspellings
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - the condition of being illuminated
| Property | Value |
|---|---|
| Headword | lightness |
| Language | English |
| Part of speech | Noun |
| IPA | /ˈlaɪtnəs/ |
| Letters | 9 |
| Frequency rank | #30,119 |
| Misspellings tracked | 13 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “lightness” sits in English frequency
Spelling & Dictionary Insight
The English entry for lightness is 9 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /ˈlaɪtnəs/. Corpus data places it at rank #30,119 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 3 distinct senses for this headword, so context determines which meaning a reader should apply.
Our generated misspelling index lists 13 likely wrong-spelling variants for lightness, with forms such as "ilghtness", "lgihtness", and "ligghtness". 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. No close-neighbour confusable shows up for this headword in our dataset, since nothing in our dataset looks or sounds close enough to cause mix-ups.
Etymologically, the entry records: From Middle English lightnes, lightnesse, from Old English līhtnes, lȳhtnys (“enlightening, illumination”), from Proto-West Germanic *liuhtinassī; equivalent to light (“to make bright, illuminate”, verb) + -ness (suffix forming nouns). Cognate with Old High… The correct English form is lightness, spelled L-I-G-H-T-N-E-S-S.
Definition
- 1the condition of being illuminated
- 2the relative whiteness or transparency of a colour
- 3The product of being illuminated.
Etymology
From Middle English lightnes, lightnesse, from Old English līhtnes, lȳhtnys (“enlightening, illumination”), from Proto-West Germanic *liuhtinassī; equivalent to light (“to make bright, illuminate”, verb) + -ness (suffix forming nouns). Cognate with Old High German liuhtnissi (“illumination, enlightening”).
This word in other languages
Common misspellings
Also misspelled as: ilghtness,lgihtness,ligghtness,lighhtness,lighntess,lightenss,lightnes,lightnness,lightnses,lighttness,ligthness,lihgtness,llightness
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of lightness - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.
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
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Using “lightness”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is L-I-G-H-T-N-E-S-S - every other letter order is a misspelling in standard orthography.
- Say it as /ˈlaɪtnəs/ (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
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.