régimenvsregulenWhich spelling fits?

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

Which to use

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

#1,045
“régimen” frequency rank
#47,375
“regulen” frequency rank
48420
confusion score

Side-by-Side Comparison

Feature régimen regulen
Definition Sistema político de gobierno. Tercera persona del plural (ellos, ellas; ustedes, 2.ª persona) del presente de subjuntivo de regular.

Where the eye mixes régimen and regulen

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. régimen and regulen follow the identical consonant-vowel pattern (CVCVCVC). Same shape at a glance is often the real trap, independent of shared letters.

7 ch
régimen
7 ch
regulen

Visual trap between régimen and regulen

These two trip readers on the page rather than in the ear: régimen is [ˈreximẽn] while regulen is [reˈɣ̞ulẽn]. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 3 positions, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 48420, derived from the frequency rank of both members and their visual similarity.

régimen is recorded at frequency rank #1,045, classified as anoun, pronounced [ˈreximẽn]. regulen is at rank #47,375, tagged as averb, pronounced [reˈɣ̞ulẽn].

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 48420, this pair ranks #114,588 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of régimen vs regulen

Shared letters: egnr. Private to "régimen": imé. Private to "regulen": lu.

"régimen" · 7 letters · shape CVCVCVC  ·  "regulen" · 7 letters · shape CVCVCVC

Known mistypes of this pair

  • regulen ← ergulen · reggulen · regluen · regueln · regulenn · regullen · regulne · reuglen

Frequently Asked Questions

Is swapping "régimen" for "regulen" ever safe?
No - they are not even the same part of speech. "régimen" is a noun and "regulen" a verb, so a sentence built for one is usually ungrammatical with the other.
In ordinary Spanish text, does "régimen" or "regulen" show up more?
"régimen" is the more common of the two: it sits at frequency rank #1,045 in our Spanish list, against #47,375 for "regulen". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

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 "régimen" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "regulen" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #114,588 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "régimen" and "regulen" also get mixed up with nearby pairs, the highest-scored neighbour is "regalen vs regulen". 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 #114,588 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list