raréfaction

\ʁa.ʁe.fak.sjɔ̃\

/\ʁa.ʁe.fak.sjɔ̃\/ noun

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

The verdict

“raréfaction” has 17 generated spelling variants in the French index at frequency #35,671. The variants make it a useful spelling check.

#35,671
frequency rank, French
507,453
“R” headwords
17
tracked misspellings

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Action de raréfier ou de se raréfier, ou état de ce qui est raréfié ; diminution du nombre ou de la quantité.

Key facts for raréfaction
PropertyValue
Headwordraréfaction
LanguageFrench
Part of speechNoun
IPA\ʁa.ʁe.fak.sjɔ̃\
Letters11
Frequency rank#35,671
Misspellings tracked17
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “raréfaction” sits in French 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). raréfaction lands here:

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

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

A misspelling magnet

The generator records 17 spelling variants around raréfaction (IPA \ʁa.ʁe.fak.sjɔ̃\), anoun. Corpus frequency is #35,671 among 507,453 “R” headwords. Wiktionary lists 2 senses, so context still picks the gloss.

Our generated misspelling index lists 17 likely wrong-spelling variants for raréfaction, with forms such as "arréfaction", "rarefaction", and "rarféaction". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. Our dataset records no confusable match here, suggesting its spelling stands apart enough that readers rarely confuse it with something else.

Wiktionary doesn't record an etymology for this headword, so its spelling pattern is best understood through pronunciation rather than a traceable origin. The correct French form is raréfaction, spelled R-A-R-É-F-A-C-T-I-O-N.

Definition

  1. 1
    Action de raréfier ou de se raréfier, ou état de ce qui est raréfié ; diminution du nombre ou de la quantité.
  2. 2
    Dilatation, extension d'un corps due à l'écartement de ses molécules. (Contraire: condensation)

Common misspellings

Also misspelled as:

  • arréfaction
  • rarefaction
  • rarféaction
  • rarréfaction
  • raréafction
  • raréfacction
  • raréfaciton
  • raréfactino
  • raréfactionn
  • raréfactoin
  • raréfacttion
  • raréfatcion
  • raréfcation
  • raréffaction
  • raérfaction
  • rraréfaction
  • rraéfaction

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of raréfaction - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.

arréfaction2rarefaction1rarféaction2rarréfaction1raréafction2raréfacction1raréfaciton2raréfactino2
Edit distance from "raréfaction"

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 French corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "raréfaction"?
"raréfaction" is spelled R-A-R-É-F-A-C-T-I-O-N. The IPA pronunciation is \ʁa.ʁe.fak.sjɔ̃\.
What does "raréfaction" mean?
As a noun, "raréfaction" means: Action de raréfier ou de se raréfier, ou état de ce qui est raréfié ; diminution du nombre ou de la quantité.
What are common misspellings of "raréfaction"?
Common misspellings include "arréfaction", "rarefaction", "rarféaction", "rarréfaction", "raréafction". The correct spelling is "raréfaction".
How do you pronounce "raréfaction"?
The IPA (International Phonetic Alphabet) transcription for "raréfaction" is \ʁa.ʁe.fak.sjɔ̃\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "raréfaction" come from?
"raréfaction" is a French word. You can look up definitions, pronunciations, and spelling data for this and other words across English, Spanish, Portuguese, French, and German on PlainSpell.
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 “raréfaction”

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

  • The one correct French spelling is R-A-R-É-F-A-C-T-I-O-N - every other letter order is a misspelling in standard orthography.
  • Say it as \ʁa.ʁe.fak.sjɔ̃\ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Browse more French words and confusable pairs in the same reference. French words

Same frequency band

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