lucid

/ˈl(j)uːsɪd/

//ˈl(j)uːsɪd// adj

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

"lucid" is a 5-letter English headword indexed on PlainSpell.

The verdict

“lucid” has 7 generated spelling variants in the English index at frequency #20,421. The variants make it a useful spelling check.

#20,421
frequency rank, English
2,297
“L” headwords
7
tracked misspellings
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Clear; easily understood.

Corpus desk

Index EN-lucid · lucid · English

lucid · rank #20,421 · 7 variants · 20 confusables

  • FREQ-MID #20,421
  • LEN-MID 5 letters
  • VOW-2 2 vowels
  • CONFUS-HIGH 20 pairs
  • VAR-MID 7 variants
  • BOOK-MID 2,297
  • PHOTO-FINISH lowly

Nearest frequency peer: lowly (-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.

Rank peers near misspelling magnet “lucid”

Same rarity band: useful when a typo lands on a peer headword

corpus weight

What this shows “lucid” sits among these FrequencyWords peers; misspelling depth is tracked separately in the edit-distance chart.

Source FrequencyWords open word-frequency list As of September 3, 2026

Visual similarity to commonly confused words

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

lucid vs Lui
40% similar
lucid vs luck
60% similar
lucid vs Lucy
40% similar

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

Key facts for lucid
PropertyValue
Headwordlucid
LanguageEnglish
Part of speechAdjective
IPA/ˈl(j)uːsɪd/
Letters5
Frequency rank#20,421
Misspellings tracked7
Confusable pairs20
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “lucid”

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).lucidlands here:

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

Ticks step logarithmically, so each one marks a roughly tenfold drop in how often the word turns up. Same rarity band neighbours include “lowly” (#20,420), “lymphoma” (#20,422), “Loretta” (#20,419). Among 2,297 “L” headwords, “lucid” is #20,421. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 7 spelling variants around lucid (IPA /ˈl(j)uːsɪd/), anadjective. Corpus frequency is #20,421 among 2,297 “L” headwords. Wiktionary lists 3 senses, so context still picks the gloss.

Our generated misspelling index lists 7 likely wrong-spelling variants for lucid, with forms such as "lcuid", "llucid", and "luccid". 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. It also participates in 20 confusable-pair relationships, "Lui", "luck", "Lucy", and more, where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: Latin lucidus, from lūceō (“shine”) + -idus. The correct English form is lucid, spelled L-U-C-I-D.

Definition

  1. 1
    Clear; easily understood.
  2. 2
    Mentally rational; sane.
  3. 3
    Bright, luminous, translucent, or transparent.

Recorded use

Wiktionary examples

These source excerpts show how lucid appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. [T]he book, constructed in short, lucid episodes, can be satisfyingly read as a sequence of provocative talks, at once well informed and vatic.
  2. The atmosphere was unusually clear, as if loath to part with the daylight; but the moon, like a round of lucid snow, had risen on the sky; and a pale, soft gleam, came from the lamps amid the foliage.

Etymology

Latin lucidus, from lūceō (“shine”) + -idus.

Synonyms

clearperspicuousstraightforwardcoherentsanebrilliantlightglowingradiantclearpellucidsee-throughtransparenttranslucent

This word in other languages

lúcido(Español)clair(Français)klar(Deutsch)lúcido(Português)

Common misspellings

Also misspelled as:

  • lcuid
  • llucid
  • luccid
  • lucdi
  • lucidd
  • luicd
  • ulcid

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of lucid - 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.

lcuid2llucid1luccid1lucdi2lucidd1luicd2ulcid2
Edit distance from "lucid"

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 "lucid"?
"lucid" is spelled L-U-C-I-D. The IPA pronunciation is /ˈl(j)uːsɪd/.
What does "lucid" mean?
As an adjective, "lucid" means: Clear; easily understood.
What words are commonly confused with "lucid"?
"lucid" is commonly confused with "Lui", "luck", "Lucy". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "lucid"?
The IPA (International Phonetic Alphabet) transcription for "lucid" is /ˈl(j)uːsɪd/. 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 "lucid"?
Latin lucidus, from lūceō (“shine”) + -idus. 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 "lucid", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 5 letters (nearest by frequency rank).

lowly#20,420Lexus#20,413leans#20,409Mosul#20,436

Similar misspelling depth

Headwords with a similar count of attested misspellings (7 here; floor ≥5).

Lacey7 variantsJohan7 variantspetit7 variantspetra7 variants

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

Source: FrequencyWords open word-frequency list