stratosphère

\stʁa.tɔs.fɛʁ\

/\stʁa.tɔs.fɛʁ\/ noun

The verdict

“stratosphère” is uncommon French (frequency #54,927 among 6,032 “S” headwords), classed as a noun. The kind of spelling people second-guess.

#54,927
frequency rank, French
6,032
“S” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Partie supérieure de l’atmosphère, où les gaz sont en repos presque complet.

Corpus desk

Index FR-stratosphere · stratosphère · French

stratosphère · rank #54,927 · 0 variants · 0 confusables

  • FREQ-RARE #54,927
  • LEN-MEGA 12 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-DENSE 6,032
  • PHOTO-FINISH stoppeur

Nearest frequency peer: stoppeur (-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 « stratosphère »

Bande clairsemée: les barres inversent le rang pour que le rare se lise plus court

corpus weight

What this shows Vue de longue queue: où « stratosphère » se situe face à des rangs français aussi rares.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for stratosphère
PropertyValue
Headwordstratosphère
LanguageFrench
Part of speechNoun
IPA\stʁa.tɔs.fɛʁ\
Letters12
Frequency rank#54,927
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Longue queue: rang de « stratosphère » en français

La fréquence va de la poignée de mots du quotidien (gauche) à la longue queue presque jamais vue (droite).stratosphèretombe dans cette queue de rareté:

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

Les tics avancent en logarithme; chacun est de l'ordre de dix fois plus rare. Voisins rares de la même bande: « stoppeur » (#54,926), « stiller » (#54,925), « stérilisé » (#54,929). Parmi 6,032 lemmes en « S », « stratosphère » est au #54,927. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

stratosphère is uncommon French at frequency #54,927 among 6,032 “S” headwords, classed as anoun, transcribed \stʁa.tɔs.fɛʁ\. Rarity is why readers land here mid-draft. 2 senses are on record.

No generated misspelling entries exist for stratosphère in our index, a sign its spelling follows regular French conventions. No confusable counterpart is on file for this word, since nothing in our dataset looks or sounds close enough to cause mix-ups.

This headword's origin isn't recorded in our source data, so any spelling logic here comes from how the word's sounds map to letters, not a documented origin story. The correct French form is stratosphère, spelled S-T-R-A-T-O-S-P-H-È-R-E.

Definition

  1. 1
    Partie supérieure de l’atmosphère, où les gaz sont en repos presque complet.
  2. 2
    Point culminant d'une chose.

Recorded use

Wiktionary examples

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

  1. Au-dessus de la tropopause se trouve la stratosphère ; elle s’étend jusqu’à 40 à 60 km d’altitude et joue un rôle protecteur pour les êtres vivants puisque l’ozone qu’elle contient en grande quantité (90 % du total de la colonne atmosphérique avec un maximum vers 25 km) absorbe le rayonnement solaire ultraviolet de longueur d’onde inférieure à environ 300…
  2. La stratosphère est la deuxième couche constituant l'atmosphère, au-dessus de la troposphère (dans laquelle nous vivons).

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

How do you spell "stratosphère"?
"stratosphère" is spelled S-T-R-A-T-O-S-P-H-È-R-E. The IPA pronunciation is \stʁa.tɔs.fɛʁ\.
What does "stratosphère" mean?
As a noun, "stratosphère" means: Partie supérieure de l’atmosphère, où les gaz sont en repos presque complet.
How do you pronounce "stratosphère"?
The IPA (International Phonetic Alphabet) transcription for "stratosphère" is \stʁa.tɔs.fɛʁ\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "stratosphère" come from?
"stratosphère" is a French word. PlainSpell's reference spans five languages -- English, Spanish, Portuguese, French, and German -- with definitions, pronunciations, and spelling data for each.
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 French words by spelling shape

Same letter count and similar misspelling depth for "stratosphère", not the corpus desk frequency band.

Same letter count

Frequency-ranked French headwords with 12 letters (nearest by frequency rank).

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

Source: FrequencyWords open word-frequency list