Ionosphäre

[i̯onoˈsfɛːʁə]

/[i̯onoˈsfɛːʁə]/ noun

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

The verdict

“Ionosphäre” is uncommon German (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.

Unranked
below top-frequency German
10
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - äußerste Schicht der Atmosphäre eines Himmelskörpers (meist der Erde), die durch Sonnenstrahlung Ionen und freie Elektronen enthält

Key facts for Ionosphäre
PropertyValue
HeadwordIonosphäre
LanguageGerman
Part of speechNoun
IPA[i̯onoˈsfɛːʁə]
Letters10
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “Ionosphäre” sits in German frequency

Ionosphäre falls outside the top-100,000 ranked German words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

Ionosphäre is uncommon German outside the top frequency list, classed as anoun, transcribed [i̯onoˈsfɛːʁə]. Rarity is why readers land here mid-draft. Gloss: "äußerste Schicht der Atmosphäre eines Himmelskörpers (meist der Erde), die durch Sonnenstrahlung Ionen und freie Elektronen enthält".

Our edit-distance generator produced no likely misspellings for Ionosphäre, since its letter sequence doesn't invite the usual edit-distance slips. Our confusable-pair dataset has no match for it, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.

No documented word history exists for this headword, so its spelling is easiest explained by how it's pronounced rather than where it came from. The correct German form is Ionosphäre, spelled I-O-N-O-S-P-H-Ä-R-E.

Definition

  1. 1
    äußerste Schicht der Atmosphäre eines Himmelskörpers (meist der Erde), die durch Sonnenstrahlung Ionen und freie Elektronen enthält

This word in other languages

ionosphere(English)ionosfera(Español)ionosphère(Français)ionosfera(Português)

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "Ionosphäre"?
"Ionosphäre" is spelled I-O-N-O-S-P-H-Ä-R-E. The IPA pronunciation is [i̯onoˈsfɛːʁə].
What does "Ionosphäre" mean?
As a noun, "Ionosphäre" means: äußerste Schicht der Atmosphäre eines Himmelskörpers (meist der Erde), die durch Sonnenstrahlung Ionen und freie Elektronen enthält
How do you pronounce "Ionosphäre"?
The IPA (International Phonetic Alphabet) transcription for "Ionosphäre" is [i̯onoˈsfɛːʁə]. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "Ionosphäre" come from?
"Ionosphäre" is a German word. PlainSpell covers definitions, pronunciations, and spelling data across English, Spanish, Portuguese, French, and German.
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 “Ionosphäre”

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

  • The one correct German spelling is I-O-N-O-S-P-H-Ä-R-E - every other letter order is a misspelling in standard orthography.
  • Say it as [i̯onoˈsfɛːʁə] (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Browse more German words and confusable pairs in the same reference. German words
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