regulärenvsregulierenWhich spelling fits?

Quick tell: regulären is a adjective, regulieren is a verb, so they fill different roles in a sentence.

Which to use

“regulären” is an adjective and “regulieren” is a verb - they look or sound alike but fill different roles in a sentence.

#8,614
“regulären” frequency rank
#20,033
“regulieren” frequency rank
28647
confusion score

Side-by-Side Comparison

Feature regulären regulieren
Definition Genitiv Singular Maskulinum der starken Deklination des Positivs des Adjektivs regulär einen Prozess steuern, ihn unter Kontrolle behalten

Where the eye mixes regulären and regulieren

Muted = shared; highlighted = the visual trap. They share 8 letters in sequence. regulären runs 9 letters (CVCVCVCVC) against regulieren's 10 (CVCVCVVCVC) - the length gap alone is often enough to separate them once you know to check it.

9 ch
regulären
10 ch
regulieren

Why the eye confuses regulären with regulieren

These two trip readers on the page rather than in the ear: regulären is [ʁeɡuˈlɛːʁən] while regulieren is [ʁeɡuˈliːʁən]. 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 (adjective vs verb), which is usually the fastest check. Our composite confusion score for this pair is 28647, derived from the frequency rank of both members and their visual similarity.

regulären is recorded at frequency rank #8,614, classified as anadj, pronounced [ʁeɡuˈlɛːʁən]. regulieren is at rank #20,033, tagged as averb, pronounced [ʁeɡuˈliːʁən].

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 28647, this pair ranks #1,781,064 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of regulären vs regulieren

Shared letters: eglnru. Private to "regulären": ä. Private to "regulieren": i.

"regulären" · 9 letters · shape CVCVCVCVC  ·  "regulieren" · 10 letters · shape CVCVCVVCVC

Known mistypes of this pair

  • regulieren ← ergulieren · reggulieren · regluieren · reguileren · reguleiren · regulieern · regulierenn · regulierne

Frequently Asked Questions

Do "regulären" and "regulieren" mean the same thing in a sentence?
No - they are not even the same part of speech. "regulären" is an adjective and "regulieren" a verb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "regulären" or "regulieren"?
"regulären" is the more common of the two: it sits at frequency rank #8,614 in our German list, against #20,033 for "regulieren". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "regulären" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "regulieren" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,781,064 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "regulären" and "regulieren" also get mixed up with nearby pairs, the highest-scored neighbour is "regulieren vs regulierten". 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 #1,781,064 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