impfenvsImpfungWhich spelling fits?

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

Which to use

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

#17,037
“impfen” frequency rank
#11,069
“Impfung” frequency rank
28106
confusion score

Side-by-Side Comparison

Feature impfen Impfung
Definition mit einer Impfung gegen Krankheiten schützen Verabreichung eines biologisch oder gentechnisch hergestellten Antigens, meist bestehend aus Protein- oder Erbgutbruchstücken oder abgetöteten beziehungsweise abgeschwächten Erregern zur Erzeugung einer Immunität gegen eine Infektionskrankheit durch die Bildung von Antikörpern und spezialisierten T-Helferzellen

Where the eye mixes impfen and Impfung

Muted = shared; highlighted = the visual trap. They share 5 letters in sequence.

6 ch
impfen
7 ch
Impfung

Why the eye confuses impfen with Impfung

These two trip readers on the page rather than in the ear: impfen is [ˈɪmp͡fn̩] while Impfung is [ˈɪmp͡fʊŋ]. 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 28106, derived from the frequency rank of both members and their visual similarity.

impfen is recorded at frequency rank #17,037, classified as averb, pronounced [ˈɪmp͡fn̩]. Impfung is at rank #11,069, tagged as anoun, pronounced [ˈɪmp͡fʊŋ].

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 28106, this pair ranks #1,790,452 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of impfen vs Impfung

Shared letters: fimnp. Private to "impfen": e. Private to "Impfung": gu.

"impfen" · 6 letters · shape VCCCVC  ·  "Impfung" · 7 letters · shape VCCCVCC

Known mistypes of this pair

  • impfenimfpen · immpfen · impefn · impfenn · impffen · impfne · imppfen · ipmfen
  • Impfungimfpung · immpfung · impffung · impfnug · impfugn · impfungg · impfunng · imppfung

Frequently Asked Questions

Do "impfen" and "Impfung" mean the same thing in a sentence?
No - they are not even the same part of speech. "impfen" is a verb and "Impfung" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary German text, does "impfen" or "Impfung" show up more?
"Impfung" is the more common of the two: it sits at frequency rank #11,069 in our German list, against #17,037 for "impfen". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

  • Full dictionary entry for "impfen" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Impfung" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,790,452 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "impfen" and "Impfung" also get mixed up with nearby pairs, the highest-scored neighbour is "Impfung vs Impfungen". 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 #1,790,452 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