definirvsdefinirseTell them apart

Which to use

“definir” and “definirse” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#4,152
“definir” frequency rank
#24,098
“definirse” frequency rank
28250
confusion score

Side-by-Side Comparison

Feature definir definirse
Definition Formular con claridad y exactitud el significado de algo. Identificarse, establecer la propia identidad o pertenencia con respecto a uno o más atributos.

Where the eye mixes definir and definirse

Muted = shared; highlighted = the visual trap. They share 7 letters in sequence. definir runs 7 letters (CVCVCVC) against definirse's 9 (CVCVCVCCV) - the length gap alone is often enough to separate them once you know to check it.

7 ch
definir
9 ch
definirse

Visual trap between definir and definirse

A purely visual mix-up. definir ([d̪efiˈniɾ]) and definirse ([d̪efiˈniɾse]) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 2 extra letter(s) - “definir” sits inside “definirse”. Our composite confusion score for this pair is 28250, derived from the frequency rank of both members and their visual similarity.

definir is recorded at frequency rank #4,152, classified as averb, pronounced [d̪efiˈniɾ]. definirse is at rank #24,098, tagged as averb, pronounced [d̪efiˈniɾse].

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 28250, this pair ranks #222,943 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of definir vs definirse

Shared letters: definr. Private to "definir": -. Private to "definirse": s.

"definir" · 7 letters · shape CVCVCVC  ·  "definirse" · 9 letters · shape CVCVCVCCV

Known mistypes of this pair

  • definir ← ddefinir · deffinir · defiinr · definirr · definnir · definri · defniir · deifnir
  • definirse ← ddefinirse · deffinirse · defiinrse · definirce · definires · definirrse · definirsse · definisre

Frequently Asked Questions

Do "definir" and "definirse" mean the same thing in a sentence?
No. They are said differently ([d̪efiˈniɾ] versus [d̪efiˈniɾse]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "definir" or "definirse"?
"definir" is the more common of the two: it sits at frequency rank #4,152 in our Spanish list, against #24,098 for "definirse". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "definir" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "definirse" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #222,943 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "definir" and "definirse" also get mixed up with nearby pairs, the highest-scored neighbour is "definiría vs definirse". 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 #222,943 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