thermischevsthermischenWhich spelling fits?

Which to use

“thermische” and “thermischen” are a confusable German pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#24,541
“thermische” frequency rank
#34,398
“thermischen” frequency rank
58939
confusion score

Side-by-Side Comparison

Feature thermische thermischen
Definition Nominativ Singular Femininum der starken Deklination des Positivs des Adjektivs thermisch Genitiv Singular Maskulinum der starken Deklination des Positivs des Adjektivs thermisch

Where the eye mixes thermische and thermischen

Muted = shared; highlighted = the visual trap. They share 10 letters in sequence. thermische runs 10 letters (CCVCCVCCCV) against thermischen's 11 (CCVCCVCCCVC) - the length gap alone is often enough to separate them once you know to check it.

10 ch
thermische
11 ch
thermischen

Why the eye confuses thermische with thermischen

A purely visual mix-up. thermische ([ˈtɛʁmɪʃə]) and thermischen ([ˈtɛʁmɪʃn̩]) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 extra letter(s) - “thermische” sits inside “thermischen”. Our composite confusion score for this pair is 58939, derived from the frequency rank of both members and their visual similarity.

thermische is recorded at frequency rank #24,541, classified as anadj, pronounced [ˈtɛʁmɪʃə]. thermischen is at rank #34,398, tagged as anadj, pronounced [ˈtɛʁmɪʃn̩].

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 58939, this pair ranks #843,489 of 2,006,359 scored German confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of thermische vs thermischen

Shared letters: cehimrst. Private to "thermische": -. Private to "thermischen": n.

"thermische" · 10 letters · shape CCVCCVCCCV  ·  "thermischen" · 11 letters · shape CCVCCVCCCVC

Known mistypes of this pair

  • thermische ← htermische · tehrmische · themrische · therimsche · thermicshe · thermiscche · thermisceh · thermischhe
  • thermischen ← htermischen · tehrmischen · themrischen · therimschen · thermicshen · thermiscchen · thermiscehn · thermischenn

Frequently Asked Questions

Is swapping "thermische" for "thermischen" ever safe?
No. They are said differently ([ˈtɛʁmɪʃə] versus [ˈtɛʁmɪʃn̩]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary German text, does "thermische" or "thermischen" show up more?
"thermische" is the more common of the two: it sits at frequency rank #24,541 in our German list, against #34,398 for "thermischen". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "thermische" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "thermischen" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #843,489 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "thermische" and "thermischen" also get mixed up with nearby pairs, the highest-scored neighbour is "thermischen vs tierischen". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #843,489 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list