ionosphère
\jɔ.nɔ.sfɛʁ\
The verdict
“ionosphère” is uncommon French (frequency #70,751 among 3,561 “I” headwords), classed as a noun. The kind of spelling people second-guess.
- #70,751
- frequency rank, French
- 3,561
- “I” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Région entourant un objet céleste, ionisée par les radiations d’une étoile proche.
Corpus desk
Index FR-ionosphere · ionosphère · French
ionosphère · rank #70,751 · 0 variants · 0 confusables
- FREQ-RARE #70,751
- LEN-MEGA 10 letters
- VOW-5 5 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 3,561
- PHOTO-FINISH ioniennes
Nearest frequency peer: ioniennes (-1 rank slots)
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.
Rangs de longue queue près de « ionosphère »
Bande clairsemée: les barres inversent le rang pour que le rare se lise plus court
- inversent
inversent
29,253 corpus weight
- investiguer
investiguer
29,252 corpus weight
- ioniennes
ioniennes
29,251 corpus weight
- ionosphère
ionosphère
29,250 corpus weight
- IPTV
IPTV
29,249 corpus weight
- irradiés
irradiés
29,248 corpus weight
What this shows Vue de longue queue: où « ionosphère » se situe face à des rangs français aussi rares.
| Property | Value |
|---|---|
| Headword | ionosphère |
| Language | French |
| Part of speech | Noun |
| IPA | \jɔ.nɔ.sfɛʁ\ |
| Letters | 10 |
| Frequency rank | #70,751 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Longue queue: rang de « ionosphère » en français
Rare enough to double-check
ionosphère is uncommon French at frequency #70,751 among 3,561 “I” headwords, classed as anoun, transcribed \jɔ.nɔ.sfɛʁ\. Rarity is why readers land here mid-draft. Gloss: "Région entourant un objet céleste, ionisée par les radiations d’une étoile proche.".
Zero misspellings are on record for ionosphère in our index, since its letter pattern doesn't lend itself to common typo substitutions. We don't track a confusable pairing for this entry, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.
Wiktionary doesn't record an etymology for this headword, so its spelling is best explained by sound-to-letter mapping rather than etymology. The correct French form is ionosphère, spelled I-O-N-O-S-P-H-È-R-E.
Definition
- 1Région entourant un objet céleste, ionisée par les radiations d’une étoile proche.
Recorded use
Wiktionary examplesThese source excerpts show how ionosphère appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
Sans compter l’ouverture qui serait offerte aux actes de « piraterie » paralysante ; car il suffirait de diffuser en haute atmosphère 25 tonnes de fluor pour désélectroniser l’ionosphère et, par conséquent, supprimer durablement toute possibilité de communication radio à longue distance.
Haarp est pointé du doigt à la suite de vidéos dans lesquelles on aperçoit des flashs lumineux dans le ciel de Marrakech, les complotistes y voyant une manipulation de l’ionosphère.
This word in other languages
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
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Similar French words by spelling shape
Same letter count and similar misspelling depth for "ionosphère", not the corpus desk frequency band.
Same letter count
Frequency-ranked French headwords with 10 letters (nearest by frequency rank).