coal

/kəʊl/

//kəʊl// noun

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

"coal" is a 4-letter English headword indexed on PlainSpell.

The verdict

“coal” sits in 20 confusable pairs (corpus #3,048) as a noun. The look-alike neighbours are the real trap.

#3,048
frequency rank, English
5,599
“C” headwords
4
tracked misspellings
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A black or brownish black rock formed from prehistoric plant remains, composed largely of carbon and burned as a fuel.

Corpus desk

Index EN-coal · coal · English

coal · rank #3,048 · 4 variants · 20 confusables

  • FREQ-COMMON #3,048
  • LEN-MID 4 letters
  • VOW-2 2 vowels
  • CONFUS-HIGH 20 pairs
  • VAR-LOW 4 variants
  • BOOK-DENSE 5,599
  • PHOTO-FINISH chocolate

Nearest frequency peer: chocolate (-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 “coal”

Lower corpus rank = more everyday usage (inverted bar length for readability)

corpus weight

What this shows Bars show where “coal” sits against the nearest ranked English headwords in the FrequencyWords band, not a reprint of letter-browse containment.

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).

coal vs cop
50% similar
coal vs con
50% similar
coal vs cow
50% similar

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

Key facts for coal
PropertyValue
Headwordcoal
LanguageEnglish
Part of speechNoun
IPA/kəʊl/
Letters4
Frequency rank#3,048
Misspellings tracked4
Confusable pairs20
SourceWiktionary (kaikki.org)

Where “coal” 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). coal lands here:

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

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Easy to mix with look-alikes

The spelling risk for coal is neighbouring look-alikes ("cop", "con", …), not just typos; it is anoun pronounced /kəʊl/. Frequency #3,048 among 5,599 “C” headwords. 8 recorded senses keep meaning in play.

Our generated misspelling index lists 4 likely wrong-spelling variants for coal, with forms such as "caol", "ccoal", and "coall". 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, "cop", "con", "cow", and more, where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: From Middle English cole, from Old English col, from Proto-West Germanic *kol, from Proto-Germanic *kulą, from Proto-Indo-European *ǵwelH- (“to burn, shine”). Cognate with West Frisian koal (“coal”), Cimbrian kholl (“coal”), Dutch kool (“coal; carbon”), Ger… The correct English form is coal, spelled C-O-A-L.

Definition

  1. 1
    A black or brownish black rock formed from prehistoric plant remains, composed largely of carbon and burned as a fuel.
  2. 2
    A black or brownish black rock formed from prehistoric plant remains, composed largely of carbon and burned as a fuel.
  3. 3
    A piece of coal used for burning (this use is less common in American English)
  4. 4
    A glowing or charred piece of coal, wood, or other solid fuel.
  5. 5
    Charcoal.
  6. 6
    Content of low quality.
  7. 7
    Bombs emitting black smoke on impact.
  8. 8
    Money.

Recorded use

Wiktionary examples

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

  1. The coal in this region was prized by ironmasters in centuries past, who mined it in the spots where the drainage methods of the day permitted.
  2. Coal-eaters they may have been, but a more willing or harder working Atlantic engine was never designed.

Etymology

From Middle English cole, from Old English col, from Proto-West Germanic *kol, from Proto-Germanic *kulą, from Proto-Indo-European *ǵwelH- (“to burn, shine”). Cognate with West Frisian koal (“coal”), Cimbrian kholl (“coal”), Dutch kool (“coal; carbon”), German Kohle (“coal”), Luxembourgish Kuel (“coal”), Vilamovian köła (“coal”), Yiddish קויל (koyl, “coal”), Danish kul (“coal”), Faroese, Icelandic, Norwegian Bokmål, Norwegian Nynorsk, Swedish kol (“coal; carbon”), Jamtish kuł (“coal; carbon”). Compare Middle Irish gúal (“coal”), Lithuanian žvi̇̀lti (“to twinkle, glow”), Persian زغال (zoġâl, “live coal”), Sanskrit ज्वल् (jval, “to burn, glow”), Tocharian B śoliye (“hearth”), all from the same root.

This word in other languages

carbón(Español)charbon(Français)Kohle(Deutsch)carvão(Português)

Common misspellings

Also misspelled as:

  • caol
  • ccoal
  • coall
  • ocal

Misspelling Pattern Breakdown

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

caol2ccoal1coall1ocal2
Edit distance from "coal"

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 September 3, 2026. Primary sources: Wiktionary (via kaikki.org) and FrequencyWords.

Frequently Asked Questions

How do you spell "coal"?
"coal" is spelled C-O-A-L. The IPA pronunciation is /kəʊl/.
What does "coal" mean?
As a noun, "coal" means: A black or brownish black rock formed from prehistoric plant remains, composed largely of carbon and burned as a fuel.
What words are commonly confused with "coal"?
"coal" is commonly confused with "cop", "con", "cow". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "coal"?
The IPA (International Phonetic Alphabet) transcription for "coal" is /kəʊl/. 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 "coal"?
From Middle English cole, from Old English col, from Proto-West Germanic *kol, from Proto-Germanic *kulą, from Proto-Indo-European *ǵwelH- (“to burn, shine”). Cognate with West Frisian koal (“coal”), Cimbrian kholl (“coal”), Dutch kool (“coal; car... 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 "coal", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 4 letters (nearest by frequency rank).

bush#3,043eric#3,055hunt#3,065inch#3,067

What to do next

You've looked up "coal". Here's where to go from here.

  • "coal" maps to 20 confusable pairs in this vintage; the highest-scored is "cop". View pair
  • 4 edit-distance misspelling variants are generated for spell-check research on this headword. See variants
  • Usage frequency rank #3,048 among English headwords in this corpus. Corpus statistics
  • Browse more English words in the "C" letter cohort. C–Z browse
  • PlainSpell rotates a curated Word of the Day from the English corpus, a passive way to discover vocabulary. Word of the Day

PlainSpell is a reference corpus, not spelling advice. Verify unusual forms in context.

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