thorn

/θɔːn/

//θɔːn// noun

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

The verdict

“thorn” is a moderately-common English word, ranked #15,531 in English word frequency and used as a noun.

#15,531
frequency rank, English
5
letters
8
tracked misspellings
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A modified branch that is hard and sharp like a spike.

Visual similarity to commonly confused words

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

thorn vs ton
60% similar
thorn vs tor
60% similar
thorn vs turn
60% similar

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

Key facts for thorn
PropertyValue
Headwordthorn
LanguageEnglish
Part of speechNoun
IPA/θɔːn/
Letters5
Frequency rank#15,531
Misspellings tracked8
Confusable pairs20
SourceWiktionary (kaikki.org)

Where “thorn” 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). thorn 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 thorn is 5 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /θɔːn/. Corpus data places it at rank #15,531 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 5 distinct senses for this headword, so context determines which meaning a reader should apply.

Our generated misspelling index lists 8 likely wrong-spelling variants for thorn, with forms such as "htorn", "thhorn", and "thonr". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. It also participates in 20 confusable-pair relationships, "ton", "tor", "turn", and more, where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: From Middle English thorn, þorn, from Old English þorn, from Proto-West Germanic *þorn, from Proto-Germanic *þurnaz, from Proto-Indo-European *tr̥nós, from *(s)ter- (“stiff”). Cognates Near cognates include West Frisian toarn, Low German Doorn, Dutch doorn,… The correct English form is thorn, spelled T-H-O-R-N.

Definition

  1. 1
    A modified branch that is hard and sharp like a spike.
  2. 2
    Any thorn-like structure on plants, such as the spine and the prickle.
  3. 3
    Any shrub or small tree that bears thorns, especially a hawthorn.
  4. 4
    That which pricks or annoys; anything troublesome.
  5. 5
    A letter of Latin script (capital: Þ, small: þ), borrowed from the futhark; today used only in Icelandic to represent the voiceless dental fricative, but originally used in several early Germanic scripts, including Old English where it represented the dental fricatives that are today written th (Old English did not have phonemic voicing distinctions for fricatives).

Etymology

From Middle English thorn, þorn, from Old English þorn, from Proto-West Germanic *þorn, from Proto-Germanic *þurnaz, from Proto-Indo-European *tr̥nós, from *(s)ter- (“stiff”). Cognates Near cognates include West Frisian toarn, Low German Doorn, Dutch doorn, German Dorn, Danish and Norwegian torn, Swedish torn, törne, Gothic 𐌸𐌰𐌿𐍂𐌽𐌿𐍃 (þaurnus). Further cognates include Old Church Slavonic трънъ (trŭnŭ, “thorn”), Russian тёрн (tjorn), Polish cierń, Kamkata-viri taňi, tai (“thorn”), Sanskrit तृण (tṛ́ṇa, “grass”).

This word in other languages

Common misspellings

Also misspelled as: htorn,thhorn,thonr,thornn,thorrn,thron,tohrn,tthorn

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of thorn - counted as single-character edits (an insertion, a deletion, or a substituted letter). The larger the bar, the easier the typo is to spot; one-edit slips are the ones that sneak past readers.

htorn2thhorn1thonr2thornn1thorrn1thron2tohrn2tthorn1
Edit distance from "thorn"

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 "thorn"?
"thorn" is spelled T-H-O-R-N. The IPA pronunciation is /θɔːn/.
What does "thorn" mean?
As a noun, "thorn" means: A modified branch that is hard and sharp like a spike.
What words are commonly confused with "thorn"?
"thorn" is commonly confused with "ton", "tor", "turn". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "thorn"?
The IPA (International Phonetic Alphabet) transcription for "thorn" is /θɔːn/. 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 "thorn"?
From Middle English thorn, þorn, from Old English þorn, from Proto-West Germanic *þorn, from Proto-Germanic *þurnaz, from Proto-Indo-European *tr̥nós, from *(s)ter- (“stiff”). Cognates Near cognates include West Frisian toarn, Low German Doorn, Du... 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 “thorn”

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

  • The one correct English spelling is T-H-O-R-N - every other letter order is a misspelling in standard orthography.
  • Say it as /θɔːn/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “ton” - see the side-by-side comparison. thorn vs ton
  • 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