coalfield

noun

"coalfield" is a 9-letter English headword indexed on PlainSpell.

The verdict

“coalfield” is uncommon English (frequency #63,512 among 5,599 “C” headwords), classed as a noun. The kind of spelling people second-guess.

#63,512
frequency rank, English
5,599
“C” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Any region containing deposits of coal that may be mined.

Corpus desk

Index EN-coalfield · coalfield · English

coalfield · rank #63,512 · 0 variants · 0 confusables

  • FREQ-RARE #63,512
  • LEN-LONG 9 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-DENSE 5,599
  • PHOTO-FINISH clumping

Nearest frequency peer: clumping (-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.

Long-tail ranks near “coalfield”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “coalfield” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for coalfield
PropertyValue
Headwordcoalfield
LanguageEnglish
Part of speechNoun
Letters9
Frequency rank#63,512
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “coalfield” in English

This scale runs from the tiny cluster of words that carry ordinary speech (left) to the long tail of words almost nobody reaches for (right).coalfieldfalls in this rarity band:

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

The axis is logarithmic, with each marked tick roughly ten times rarer than the last. Rare peers in the same band: “clumping” (#63,511), “cockle” (#63,514), “clandestinely” (#63,509). Among 5,599 “C” headwords, “coalfield” is #63,512. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

coalfield is uncommon English at frequency #63,512 among 5,599 “C” headwords, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "Any region containing deposits of coal that may be mined.".

coalfield has no tracked misspelling variants, typically a sign the spelling maps closely to how the word sounds. This entry stands alone in our confusable dataset, since no other headword is close enough in sound or shape to pair with it.

Etymologically, the entry records: From coal + field. The correct English form is coalfield, spelled C-O-A-L-F-I-E-L-D.

Definition

  1. 1
    Any region containing deposits of coal that may be mined.

Recorded use

Wiktionary examples

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

  1. The east-west flow consists in the westerly direction of the agricultural and industrial products of East Anglia; imports through London and Parkeston (Harwich); special traffic in coke to the Northamptonshire ironfield; and mineral empties returning to the Derbyshire, Nottinghamshire, and South Yorkshire coalfields.
  2. The amount of coal despatched in the Western Region is about 24,000,000 tons a year, nearly all from South Wales, though the Region includes the Forest of Dean, N. Somerset, and part of the N. Wales coalfields.

Etymology

From coal + field.

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 "coalfield"?
"coalfield" is spelled C-O-A-L-F-I-E-L-D.
What does "coalfield" mean?
As a noun, "coalfield" means: Any region containing deposits of coal that may be mined.
What is the origin of the word "coalfield"?
From coal + field. 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 "coalfield", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 9 letters (nearest by frequency rank).

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list