Carmarthen
/kə(ɹ)ˈmɑː(ɹ)ðən/
"carmarthen" is a 10-letter English headword indexed on PlainSpell.
The verdict
“Carmarthen” is uncommon English (frequency #51,597 among 43,570 “C” headwords), classed as a proper noun. The kind of spelling people second-guess.
- #51,597
- frequency rank, English
- 43,570
- “C” headwords
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A town and community (with a town council) in and the county town of Carmarthenshire, Wales (OS grid ref SN4120).
Corpus desk
Index EN-carmarthen · Carmarthen · English
Carmarthen · rank #51,597 · 0 variants · 0 confusables
- FREQ-RARE #51,597
- LEN-MEGA 10 letters
- VOW-3 3 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-DENSE 43,570
- PHOTO-FINISH carling
Nearest frequency peer: carling (-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.
Frequency neighbourhood for “Carmarthen”
Lower corpus rank = more everyday usage (inverted bar length for readability)
- camellia
camellia
48,408 corpus weight
- captivate
captivate
48,406 corpus weight
- carling
carling
48,405 corpus weight
- Carmarthen
Carmarthen
48,404 corpus weight
- carnaval
carnaval
48,403 corpus weight
- Carvajal
Carvajal
48,401 corpus weight
What this shows Bars show where “Carmarthen” sits against the nearest ranked English headwords in the FrequencyWords band, not a reprint of letter-browse containment.
| Property | Value |
|---|---|
| Headword | Carmarthen |
| Language | English |
| Part of speech | Proper noun |
| IPA | /kə(ɹ)ˈmɑː(ɹ)ðən/ |
| Letters | 10 |
| Frequency rank | #51,597 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “Carmarthen” sits in English frequency
Rare enough to double-check
Carmarthen is uncommon English at frequency #51,597 among 43,570 “C” headwords, classed as aproper noun, transcribed /kə(ɹ)ˈmɑː(ɹ)ðən/. Rarity is why readers land here mid-draft. Gloss: "A town and community (with a town council) in and the county town of Carmarthenshire, Wales (OS grid ref SN4120).".
No misspelling variants are generated for Carmarthen in our index, typically a sign the spelling maps closely to how the word sounds. Our dataset records no confusable match here, since its spelling is unusual enough that it doesn't cluster with a lookalike.
Etymologically, the entry records: Inherited from Middle English Keyrmerthyn, Kairmerthen, from an earlier form of Welsh Caerfyrddin. The correct English form is Carmarthen, spelled C-A-R-M-A-R-T-H-E-N.
Definition
- 1A town and community (with a town council) in and the county town of Carmarthenshire, Wales (OS grid ref SN4120).
Etymology
Inherited from Middle English Keyrmerthyn, Kairmerthen, from an earlier form of Welsh Caerfyrddin.
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.
PlainSpell is rendered directly from structured Wiktionary extracts and open word-frequency lists, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 6, 2026. Primary sources: Wiktionary (via kaikki.org) and FrequencyWords.
Frequently Asked Questions
How do you spell "Carmarthen"?
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Similar English words by spelling shape
Same letter count and similar misspelling depth for "Carmarthen", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 10 letters (nearest by frequency rank).
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.