RiedervsrunderWhich spelling fits?

Quick tell: Rieder is a noun, runder is an adjective, so they fill different roles in a sentence.

Which to use

“Rieder” is a noun and “runder” is an adjective - they look or sound alike but fill different roles in a sentence.

#43,446
“Rieder” frequency rank
#18,045
“runder” frequency rank
61491
confusion score

Side-by-Side Comparison

Feature Rieder runder
Definition Nominativ Plural des Substantivs Ried Nominativ Singular Maskulinum der starken Deklination des Positivs des Adjektivs rund

Where the eye mixes Rieder and runder

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. Rieder (CVVCVC) and runder (CVCCVC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

6 ch
Rieder
6 ch
runder

Why the eye confuses Rieder with runder

These two trip readers on the page rather than in the ear: Rieder is [ʁiːdɐ] while runder is [ˈʁʊndɐ]. 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 adjective), which is usually the fastest check. Our composite confusion score for this pair is 61491, derived from the frequency rank of both members and their visual similarity.

Rieder is recorded at frequency rank #43,446, classified as anoun, pronounced [ʁiːdɐ]. runder is at rank #18,045, tagged as anadj, pronounced [ˈʁʊndɐ].

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 61491, this pair ranks #747,790 of 2,006,359 scored German confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of Rieder vs runder

Shared letters: der. Private to "Rieder": i. Private to "runder": nu.

"Rieder" · 6 letters · shape CVVCVC  ·  "runder" · 6 letters · shape CVCCVC

Known mistypes of this pair

  • Rieder ← ireder · reider · rideer · riedder · riederr · riedre · rieedr · rrieder
  • runder ← rnuder · rrunder · rudner · rundder · runderr · rundre · runedr · runnder

Frequently Asked Questions

Do "Rieder" and "runder" mean the same thing in a sentence?
No - they are not even the same part of speech. "Rieder" is a noun and "runder" an adjective, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "Rieder" vs "runder" - which ranks higher?
"runder" is the more common of the two: it sits at frequency rank #18,045 in our German list, against #43,446 for "Rieder". 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 "Rieder" and "runder" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "Rieder" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "runder" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #747,790 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "Rieder" and "runder" also get mixed up with nearby pairs, the highest-scored neighbour is "Reeder vs Rieder". 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 #747,790 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