IdeevsIlseWhich spelling fits?

Quick tell: Idee is a noun, Ilse is a name, so they fill different roles in a sentence.

Which to use

“Idee” is a noun and “Ilse” is a name - they look or sound alike but fill different roles in a sentence.

#545
“Idee” frequency rank
#14,836
“Ilse” frequency rank
15381
confusion score

Side-by-Side Comparison

Feature Idee Ilse
Definition Urbild einer Erscheinung weiblicher Vorname

Where the eye mixes Idee and Ilse

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
Idee
4 ch
Ilse

Visual trap between Idee and Ilse

These two trip readers on the page rather than in the ear: Idee is [iˈdeː] while Ilse is [ˈɪlzə]. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs name), which is usually the fastest check. Our composite confusion score for this pair is 15381, derived from the frequency rank of both members and their visual similarity.

Idee is recorded at frequency rank #545, classified as anoun, pronounced [iˈdeː]. Ilse is at rank #14,836, tagged as aname, pronounced [ˈɪlzə].

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 15381, this pair ranks #1,944,313 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of Idee vs Ilse

Shared letters: ei. Private to "Idee": d. Private to "Ilse": ls.

"Idee" · 4 letters · shape VCVV  ·  "Ilse" · 4 letters · shape VCCV

Known mistypes of this pair

  • Ideediee · iddee · ide · iede
  • Ilseillse · ilsse

Frequently Asked Questions

Can "Idee" and "Ilse" be used interchangeably?
No - they are not even the same part of speech. "Idee" is a noun and "Ilse" a name, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "Idee" vs "Ilse" - which ranks higher?
"Idee" is the more common of the two: it sits at frequency rank #545 in our German list, against #14,836 for "Ilse". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

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

  • Full dictionary entry for "Idee" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Ilse" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,944,313 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "Idee" and "Ilse" also get mixed up with nearby pairs, the highest-scored neighbour is "Ilse vs IMs". 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 #1,944,313 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