definenvsdelfinesTell them apart

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

Which to use

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

#9,097
“definen” frequency rank
#15,337
“delfines” frequency rank
24434
confusion score

Side-by-Side Comparison

Feature definen delfines
Definition Tercera persona del plural (ellos, ellas; ustedes, 2.ª persona) del presente de indicativo de definir o de definirse. Forma del plural de delfín.

Where the eye mixes definen and delfines

Muted = shared; highlighted = the visual trap. They share 6 letters in sequence. definen runs 7 letters (CVCVCVC) against delfines's 8 (CVCCVCVC) - the length gap alone is often enough to separate them once you know to check it.

7 ch
definen
8 ch
delfines

Why the eye confuses definen with delfines

These two trip readers on the page rather than in the ear: definen is [d̪eˈfinẽn] while delfines is [d̪elˈfines]. 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 (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 24434, derived from the frequency rank of both members and their visual similarity.

definen is recorded at frequency rank #9,097, classified as averb, pronounced [d̪eˈfinẽn]. delfines is at rank #15,337, tagged as anoun, pronounced [d̪elˈfines].

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 24434, this pair ranks #241,198 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of definen vs delfines

Shared letters: defin. Private to "definen": -. Private to "delfines": ls.

"definen" · 7 letters · shape CVCVCVC  ·  "delfines" · 8 letters · shape CVCCVCVC

Known mistypes of this pair

  • definen ← ddefinen · deffinen · defienn · definenn · definnen · defnien · deifnen · dfeinen
  • delfines ← ddelfines · deflines · delffines · delfiens · delfiness · delfinnes · delfinse · delfnies

Frequently Asked Questions

Can "definen" and "delfines" be used interchangeably?
No - they are not even the same part of speech. "definen" is a verb and "delfines" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary Spanish text, does "definen" or "delfines" show up more?
"definen" is the more common of the two: it sits at frequency rank #9,097 in our Spanish list, against #15,337 for "delfines". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "definen" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "delfines" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #241,198 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "definen" and "delfines" also get mixed up with nearby pairs, the highest-scored neighbour is "delfines vs delfino". 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 #241,198 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