Standard Lemma guide

lichen

noun · verb · 5 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • lī'kən
  • /ˈlaɪ.kən/
  • lĭ'chən
  • /ˈlɪtʃ.ən/ spelling pronunciation
  • UK: Recorded audio is listed in the source snapshot.
  • rhymes with -aɪkən
  • rhymes with -ɪtʃən
  • homophone: liken
  • homophone: lycan
  • CMU ARPABET: L AY1 K AH0 N Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 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.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

Something which gradually spreads across something else, causing damage.

Definition source: English Wiktionary via Wiktextract

Usage: countable, figuratively, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: cancer

Antonyms: none provided

3

verb

Meaning 3

To cover with lichen.

Definition source: English Wiktionary via Wiktextract

Usage: transitive

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

any thallophytic plant of the division Lichenes; occur as crusty patches or bushy growths on tree trunks or rocks or bare ground etc.

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: fungus

Narrower terms: ascolichen, basidiolichen, lecanora, roccella, Roccella tinctoria, beard lichen, beard moss, Usnea barbata, horsehair lichen, horsetail lichen, reindeer moss, reindeer lichen, arctic moss, Cladonia rangiferina, crottle, crottal, crotal, Iceland moss, Iceland lichen, Cetraria islandica

5

noun

Meaning 5

any of several eruptive skin diseases characterized by hard thick lesions grouped together and resembling lichens growing on rocks

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: skin disease, disease of the skin, skin disorder

Narrower terms: lichen planus, lichen ruber planus

History

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.

Across languages

Translations

101 source translations are retained for this English entry.

  • Albanian: liken — symbiotic association of algae and fungi
  • Arabic: أُشْنَة (ʔušna) — symbiotic association of algae and fungi
  • Arabic: حَزَاز (ḥazāz) — symbiotic association of algae and fungi
  • Armenian: քարաքոս (kʻarakʻos) — symbiotic association of algae and fungi
  • Azerbaijani: şibyə — symbiotic association of algae and fungi
  • Basque: liken — symbiotic association of algae and fungi
  • Belarusian: ліша́й (lišáj) — symbiotic association of algae and fungi
  • Belarusian: ліша́йнік (lišájnik) — symbiotic association of algae and fungi
  • Bengali: শৈবাল (śōibal) — symbiotic association of algae and fungi
  • Bulgarian: ли́шей (líšej) — symbiotic association of algae and fungi
  • Burmese: လေသိုက် (lesuik) — symbiotic association of algae and fungi
  • Catalan: liquen — symbiotic association of algae and fungi
  • Chinese Mandarin: 地衣 (dìyī) — symbiotic association of algae and fungi
  • Czech: lišejník — symbiotic association of algae and fungi
  • Danish: lav — symbiotic association of algae and fungi
  • Dutch: korstmos — symbiotic association of algae and fungi
  • Esperanto: likeno — symbiotic association of algae and fungi
  • Estonian: samblik — symbiotic association of algae and fungi
  • Faroese: skón — symbiotic association of algae and fungi
  • Finnish: jäkälä — symbiotic association of algae and fungi
  • French: lichen — symbiotic association of algae and fungi
  • Friulian: lichil — symbiotic association of algae and fungi
  • Galician: orcelo — symbiotic association of algae and fungi
  • Galician: orco — symbiotic association of algae and fungi
  • Galician: calquizo — symbiotic association of algae and fungi
  • Galician: ouricela — symbiotic association of algae and fungi
  • Galician: escamenta — symbiotic association of algae and fungi
  • Galician: lique — symbiotic association of algae and fungi
  • Georgian: ლიქენი (likeni) — symbiotic association of algae and fungi
  • German: Flechte — symbiotic association of algae and fungi
  • Greek: λειχήνα (leichína) — symbiotic association of algae and fungi
  • Ancient Greek: λειχήν (leikhḗn) — symbiotic association of algae and fungi
  • Hebrew: חֲזָזִית (khazazít) — symbiotic association of algae and fungi
  • Hindi: लाइकेन (lāiken) — symbiotic association of algae and fungi
  • Hindi: शैवाक (śaivāk) — symbiotic association of algae and fungi
  • Hindi: शैक (śaik) — symbiotic association of algae and fungi
  • Hindi: काई (kāī) — symbiotic association of algae and fungi
  • Hungarian: zuzmó — symbiotic association of algae and fungi
  • Icelandic: flétta — symbiotic association of algae and fungi
  • Icelandic: skóf — symbiotic association of algae and fungi
  • Ingrian: kangassammal — symbiotic association of algae and fungi
  • Ingrian: kantosammal — symbiotic association of algae and fungi
  • Irish: léicean — symbiotic association of algae and fungi
  • Italian: lichene — symbiotic association of algae and fungi
  • Japanese: 地衣類 (chiirui) — symbiotic association of algae and fungi
  • Kazakh: қына (qyna) — symbiotic association of algae and fungi
  • Khmer: កវកាប្យ (kaʼvĕəʼkaap) — symbiotic association of algae and fungi
  • Korean: 지의류 (jiuiryu) — symbiotic association of algae and fungi
  • Kyrgyz: эңилчек (eŋilcek) — symbiotic association of algae and fungi
  • Lao: ຜາກ (phāk) — symbiotic association of algae and fungi
  • Latin: līchēn — symbiotic association of algae and fungi
  • Latvian: ķērpis — symbiotic association of algae and fungi
  • Lithuanian: kerpės — symbiotic association of algae and fungi
  • Macedonian: лишај (lišaj) — symbiotic association of algae and fungi
  • Malay: kulampair — symbiotic association of algae and fungi
  • Malay: liken — symbiotic association of algae and fungi
  • Māori: pukoko — symbiotic association of algae and fungi
  • Māori: hawa — symbiotic association of algae and fungi
  • Māori: mūna — symbiotic association of algae and fungi
  • Māori: angiangi — symbiotic association of algae and fungi
  • Marathi: दगडफूल (dagaḍphūl) — symbiotic association of algae and fungi
  • Marathi: धोंडफूल (dhoṇḍphūl) — symbiotic association of algae and fungi
  • Marathi: फत्तरफूल (phattarphūl) — symbiotic association of algae and fungi
  • Marathi: गिरीपुष्पक (girīpuṣpak) — symbiotic association of algae and fungi
  • Marathi: शैलज (śailaj) — symbiotic association of algae and fungi
  • Mongolian: хаг өвс (xag övs) — symbiotic association of algae and fungi
  • Mongolian: ᠬᠠᠭ ᠡᠪᠡᠰᠦ (qaɣ ebesü) — symbiotic association of algae and fungi
  • Navajo: dláád — symbiotic association of algae and fungi
  • Norwegian Bokmål: lav — symbiotic association of algae and fungi
  • Norwegian Nynorsk: lav — symbiotic association of algae and fungi
  • Old English: ragu — symbiotic association of algae and fungi
  • Persian: گلسنگ (golsang) — symbiotic association of algae and fungi
  • Polish: porost — symbiotic association of algae and fungi
  • Polish: liszaj — symbiotic association of algae and fungi
  • Portuguese: líquen — symbiotic association of algae and fungi
  • Romanian: lichen — symbiotic association of algae and fungi
  • Russian: лиша́йник (lišájnik) — symbiotic association of algae and fungi
  • Russian: лиша́й (lišáj) — symbiotic association of algae and fungi
  • Serbo-Croatian: ли̏ша̄ј — symbiotic association of algae and fungi
  • Serbo-Croatian: lȉšāj — symbiotic association of algae and fungi
  • Shor: сырынма — symbiotic association of algae and fungi
  • Slovak: lišajník — symbiotic association of algae and fungi
  • Slovene: lišaj — symbiotic association of algae and fungi
  • Upper Sorbian: lišawa — symbiotic association of algae and fungi
  • Spanish: liquen — symbiotic association of algae and fungi
  • Swedish: lav — symbiotic association of algae and fungi
  • Tagalog: ligbus — symbiotic association of algae and fungi
  • Tajik: гулсанг (gulsang) — symbiotic association of algae and fungi
  • Tatar: лишайник (lişaynik) — symbiotic association of algae and fungi
  • Thai: ตะไคร่ (dtà-krâi) — symbiotic association of algae and fungi
  • Thai: ตะไคร่น้ํา (dtà-krâi-náam) — symbiotic association of algae and fungi
  • Thai: หญ้าม็อส (mɔ́ɔt) — symbiotic association of algae and fungi
  • Turkish: liken — symbiotic association of algae and fungi
  • Ottoman Turkish: مانطار (mantar) — symbiotic association of algae and fungi
  • Ottoman Turkish: طاش مانطاری (taş mantarı) — symbiotic association of algae and fungi
  • Ukrainian: лиша́йник (lyšájnyk) — symbiotic association of algae and fungi
  • Urdu: اشنہ (ušna) — symbiotic association of algae and fungi
  • Uyghur: مۇخ (mux) — symbiotic association of algae and fungi
  • Uzbek: lishaynik — symbiotic association of algae and fungi
  • Vietnamese: địa y — symbiotic association of algae and fungi
  • Welsh: cen — symbiotic association of algae and fungi
Real reading context

lichen in complete knowledge articles