RoggenvsröntgenWhich spelling fits?

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

Which to use

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

#32,241
“Roggen” frequency rank
#20,391
“röntgen” frequency rank
52632
confusion score

Side-by-Side Comparison

Feature Roggen röntgen
Definition langstielige Getreideart mit relativ langen Ähren und Grannen einen Körper mittels Röntgenstrahlung untersuchen

Where the eye mixes Roggen and röntgen

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.

6 ch
Roggen
7 ch
röntgen

Why the eye confuses Roggen with röntgen

These two trip readers on the page rather than in the ear: Roggen is [ˈʁɔɡn̩] while röntgen is [ˈʁœntɡn̩]. 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 (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 52632, derived from the frequency rank of both members and their visual similarity.

Roggen is recorded at frequency rank #32,241, classified as anoun, pronounced [ˈʁɔɡn̩]. röntgen is at rank #20,391, tagged as averb, pronounced [ˈʁœntɡn̩].

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 52632, this pair ranks #1,089,277 of 2,006,359 scored German confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of Roggen vs röntgen

Shared letters: egnr. Private to "Roggen": o. Private to "röntgen": .

"Roggen" · 6 letters · shape CVCCVC  ·  "röntgen" · 7 letters · shape CVCCCVC

Known mistypes of this pair

  • Roggenorggen · rgogen · rogegn · rogen · roggenn · roggne · rroggen

Frequently Asked Questions

Is swapping "Roggen" for "röntgen" ever safe?
No - they are not even the same part of speech. "Roggen" is a noun and "röntgen" a verb, so a sentence built for one is usually ungrammatical with the other.
In ordinary German text, does "Roggen" or "röntgen" show up more?
"röntgen" is the more common of the two: it sits at frequency rank #20,391 in our German list, against #32,241 for "Roggen". 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 "Roggen" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "röntgen" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,089,277 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "Roggen" and "röntgen" also get mixed up with nearby pairs, the highest-scored neighbour is "Roggen vs rösten". 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 #1,089,277 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