lichen

/ˈlaɪ.kən/

//ˈlaɪ.kən// noun

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

"lichen" is a 6-letter English headword indexed on PlainSpell.

The verdict

“lichen” is a moderately-common English word, ranked #38,474 in English word frequency and used as a noun.

#38,474
frequency rank, English
6
letters
9
tracked misspellings
9
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Any of many symbiotic organisms, being associations of algae and fungi, often found as white or yellow-to-blue–green patches on rocks, old walls, etc.

Visual similarity to commonly confused words

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

lichen vs lien
67% similar
lichen vs linen
67% similar
lichen vs liven
67% similar

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

Key facts for lichen
PropertyValue
Headwordlichen
LanguageEnglish
Part of speechNoun
IPA/ˈlaɪ.kən/
Letters6
Frequency rank#38,474
Misspellings tracked9
Confusable pairs9
SourceWiktionary (kaikki.org)

Where “lichen” 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). lichen 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 lichen is 6 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /ˈlaɪ.kən/. Corpus data places it at rank #38,474 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 2 distinct senses for this headword, so context determines which meaning a reader should apply.

Our generated misspelling index lists 9 likely wrong-spelling variants for lichen, with forms such as "ilchen", "lcihen", and "licchen". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. It also participates in 9 confusable-pair relationships, "lien", "linen", "liven", and more, where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: Borrowed from Latin līchēn, from Ancient Greek λειχήν (leikhḗn), from λείχω (leíkhō, “to lick”). Originally used of liverwort; the modern sense first recorded 1715. The correct English form is lichen, spelled L-I-C-H-E-N.

Definition

  1. 1
    Any of many symbiotic organisms, being associations of algae and fungi, often found as white or yellow-to-blue–green patches on rocks, old walls, etc.
  2. 2
    Something which gradually spreads across something else, causing damage.

Etymology

Borrowed from Latin līchēn, from Ancient Greek λειχήν (leikhḗn), from λείχω (leíkhō, “to lick”). Originally used of liverwort; the modern sense first recorded 1715.

This word in other languages

liquen(Español)lichen(Français)Flechte(Deutsch)líquen(Português)

Common misspellings

Also misspelled as: ilchen,lcihen,licchen,licehn,lichenn,lichhen,lichne,lihcen,llichen

Misspelling Pattern Breakdown

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

ilchen2lcihen2licchen1licehn2lichenn1lichhen1lichne2lihcen2
Edit distance from "lichen"

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 "lichen"?
"lichen" is spelled L-I-C-H-E-N. The IPA pronunciation is /ˈlaɪ.kən/.
What does "lichen" mean?
As a noun, "lichen" means: Any of many symbiotic organisms, being associations of algae and fungi, often found as white or yellow-to-blue–green patches on rocks, old walls, etc.
What words are commonly confused with "lichen"?
"lichen" is commonly confused with "lien", "linen", "liven". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "lichen"?
The IPA (International Phonetic Alphabet) transcription for "lichen" is /ˈlaɪ.kən/. 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 "lichen"?
Borrowed from Latin līchēn, from Ancient Greek λειχήν (leikhḗn), from λείχω (leíkhō, “to lick”). Originally used of liverwort; the modern sense first recorded 1715. 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 “lichen”

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

  • The one correct English spelling is L-I-C-H-E-N - every other letter order is a misspelling in standard orthography.
  • Say it as /ˈlaɪ.kən/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “lien” - see the side-by-side comparison. lichen vs lien
  • 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