furnace

/ˈfɝnɪs/

//ˈfɝnɪs// noun

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

"furnace" is a 7-letter English headword indexed on PlainSpell.

The verdict

“furnace” has 10 generated spelling variants in the English index at frequency #12,604. The variants make it a useful spelling check.

#12,604
frequency rank, English
2,507
“F” headwords
10
tracked misspellings

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - An industrial heating device, such as for smelting metal or firing ceramics.

Corpus desk

Index EN-furnace · furnace · English

furnace · rank #12,604 · 10 variants · 0 confusables

  • FREQ-MID #12,604
  • LEN-LONG 7 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-MID 10 variants
  • BOOK-MID 2,507
  • PHOTO-FINISH freedoms

Nearest frequency peer: freedoms (-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.

Rank peers near misspelling magnet “furnace”

Same rarity band: useful when a typo lands on a peer headword

corpus weight

What this shows “furnace” sits among these FrequencyWords peers; misspelling depth is tracked separately in the edit-distance chart.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for furnace
PropertyValue
Headwordfurnace
LanguageEnglish
Part of speechNoun
IPA/ˈfɝnɪs/
Letters7
Frequency rank#12,604
Misspellings tracked10
Confusable pairs0
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “furnace”

Word frequency stretches from the small set of words we reach for constantly (left) out to the long tail barely used once in a while (right).furnacelands here:

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

The axis is logarithmic, with each marked tick roughly ten times rarer than the last. Same rarity band neighbours include “freedoms” (#12,603), “fuse” (#12,605), “Frankfurt” (#12,602). Among 2,507 “F” headwords, “furnace” is #12,604. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 10 spelling variants around furnace (IPA /ˈfɝnɪs/), anoun. Corpus frequency is #12,604 among 2,507 “F” headwords. Wiktionary lists 4 senses, so context still picks the gloss.

Our generated misspelling index lists 10 likely wrong-spelling variants for furnace, with forms such as "ffurnace", "frunace", and "funrace". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. Our dataset records no confusable match here, which typically means the spelling is too distinctive to be mistaken for another word.

Etymologically, the entry records: From Middle English forneys, from Old French fornais (French fournaise), from Latin fornāx. The correct English form is furnace, spelled F-U-R-N-A-C-E.

Definition

  1. 1
    An industrial heating device, such as for smelting metal or firing ceramics.
  2. 2
    A device that provides heat for a building.
  3. 3
    Any area that is excessively hot.
  4. 4
    A place or time of punishment, affliction, or great trial; severe experience or discipline.

Recorded use

Wiktionary examples

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

  1. Plans for the next phase include furnaces capable of inert atmospheres and partial vacuums.
  2. HVAC services include furnace maintenance.

Etymology

From Middle English forneys, from Old French fornais (French fournaise), from Latin fornāx.

This word in other languages

horno(Español)four(Français)Ofen(Deutsch)forno(Português)

Common misspellings

Also misspelled as:

  • ffurnace
  • frunace
  • funrace
  • furance
  • furnacce
  • furnaec
  • furncae
  • furnnace
  • furrnace
  • ufrnace

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of furnace - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.

ffurnace1frunace2funrace2furance2furnacce1furnaec2furncae2furnnace1
Edit distance from "furnace"

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 "furnace"?
"furnace" is spelled F-U-R-N-A-C-E. The IPA pronunciation is /ˈfɝnɪs/.
What does "furnace" mean?
As a noun, "furnace" means: An industrial heating device, such as for smelting metal or firing ceramics.
What are common misspellings of "furnace"?
Common misspellings include "ffurnace", "frunace", "funrace", "furance", "furnacce". The correct spelling is "furnace".
How do you pronounce "furnace"?
The IPA (International Phonetic Alphabet) transcription for "furnace" is /ˈfɝnɪs/. 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 "furnace"?
From Middle English forneys, from Old French fornais (French fournaise), from Latin fornāx. 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 "furnace", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 7 letters (nearest by frequency rank).

fertile#12,597goodman#12,612gorilla#12,613Hamburg#12,615

Similar misspelling depth

Headwords with a similar count of attested misspellings (10 here; floor ≥5).

loosely10 variantsNicolas10 variantscaravan10 variantspeasant10 variants

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

Source: FrequencyWords open word-frequency list