igenvsIonenWhich spelling fits?

Quick tell: igen is a adverb, Ionen is a noun, so they fill different roles in a sentence.

Which to use

“igen” is an adverb and “Ionen” is a noun - they look or sound alike but fill different roles in a sentence.

#38,824
“igen” frequency rank
#15,664
“Ionen” frequency rank
54488
confusion score

Side-by-Side Comparison

Feature igen Ionen
Definition ja Nominativ Plural des Substantivs Ion

Where the eye mixes igen and Ionen

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. igen runs 4 letters (VCVC) against Ionen's 5 (VVCVC) - the length gap alone is often enough to separate them once you know to check it.

4 ch
igen
5 ch
Ionen

Visual trap between igen and Ionen

These two trip readers on the page rather than in the ear: igen is [ˈiɡɛn] while Ionen is [iˈoːnən]. 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 (adverb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 54488, derived from the frequency rank of both members and their visual similarity.

igen is recorded at frequency rank #38,824, classified as anadv, pronounced [ˈiɡɛn]. Ionen is at rank #15,664, tagged as anoun, pronounced [iˈoːnən].

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 54488, this pair ranks #1,016,933 of 2,006,359 scored German confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of igen vs Ionen

Shared letters: ein. Private to "igen": g. Private to "Ionen": o.

"igen" · 4 letters · shape VCVC  ·  "Ionen" · 5 letters · shape VVCVC

Known mistypes of this pair

  • igen ← gien · iegn · igenn · iggen
  • Ionen ← inoen · ioenn · ionenn · ionne · ionnen · oinen

Frequently Asked Questions

Can "igen" and "Ionen" be used interchangeably?
No - they are not even the same part of speech. "igen" is an adverb and "Ionen" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary German text, does "igen" or "Ionen" show up more?
"Ionen" is the more common of the two: it sits at frequency rank #15,664 in our German list, against #38,824 for "igen". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

  • Full dictionary entry for "igen" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Ionen" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,016,933 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "igen" and "Ionen" also get mixed up with nearby pairs, the highest-scored neighbour is "igen vs ile". 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 #1,016,933 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