erwärmenvsErwärmungWhat's the difference?

Quick tell: erwärmen is a verb, Erwärmung is a noun, so they fill different roles in a sentence.

Which to use

“erwärmen” is a verb and “Erwärmung” is a noun - they look or sound alike but fill different roles in a sentence.

#24,703
“erwärmen” frequency rank
#14,282
“Erwärmung” frequency rank
38985
confusion score

Side-by-Side Comparison

Feature erwärmen Erwärmung
Definition warm machen; die Temperatur erhöhen kleine Erhöhung der Temperatur

Where the eye mixes erwärmen and Erwärmung

Muted = shared; highlighted = the visual trap. They share 7 letters in sequence. erwärmen runs 8 letters (VCCVCCVC) against Erwärmung's 9 (VCCVCCVCC) - the length gap alone is often enough to separate them once you know to check it.

8 ch
erwärmen
9 ch
Erwärmung

Why the eye confuses erwärmen with Erwärmung

These two trip readers on the page rather than in the ear: erwärmen is [ɛɐ̯ˈvɛʁmən] while Erwärmung is [ɛɐ̯ˈvɛʁmʊŋ]. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 38985, derived from the frequency rank of both members and their visual similarity.

erwärmen is recorded at frequency rank #24,703, classified as averb, pronounced [ɛɐ̯ˈvɛʁmən]. Erwärmung is at rank #14,282, tagged as anoun, pronounced [ɛɐ̯ˈvɛʁmʊŋ].

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 38985, this pair ranks #1,549,297 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of erwärmen vs Erwärmung

Shared letters: emnrwä. Private to "erwärmen": -. Private to "Erwärmung": gu.

"erwärmen" · 8 letters · shape VCCVCCVC  ·  "Erwärmung" · 9 letters · shape VCCVCCVCC

Frequently Asked Questions

Is swapping "erwärmen" for "Erwärmung" ever safe?
No - they are not even the same part of speech. "erwärmen" is a verb and "Erwärmung" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "erwärmen" vs "Erwärmung" - which ranks higher?
"Erwärmung" is the more common of the two: it sits at frequency rank #14,282 in our German list, against #24,703 for "erwärmen". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Eye-level mix-up between "erwärmen" and "Erwärmung" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "erwärmen" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Erwärmung" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,549,297 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "erwärmen" and "Erwärmung" also get mixed up with nearby pairs, the highest-scored neighbour is "erwarben vs erwärmen". Nearby pair

Confusion rank #1,549,297 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