funciónvsfuncionanWhich spelling fits?

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

Which to use

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

#1,196
“función” frequency rank
#4,605
“funcionan” frequency rank
5801
confusion score

Side-by-Side Comparison

Feature función funcionan
Definition Propósito de algo, uso de algo. Tercera persona del plural (ellos, ellas; ustedes, 2.ª persona) del presente de indicativo de funcionar.

Where the eye mixes función and funcionan

Muted = shared; highlighted = the visual trap. They share 6 letters in sequence.

7 ch
función
9 ch
funcionan

Visual trap between función and funcionan

These two trip readers on the page rather than in the ear: función is [fũnˈsjõn] while funcionan is [fũnˈsjonãn]. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 letter(s) in length, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 5801, derived from the frequency rank of both members and their visual similarity.

función is recorded at frequency rank #1,196, classified as anoun, pronounced [fũnˈsjõn]. funcionan is at rank #4,605, tagged as averb, pronounced [fũnˈsjonãn].

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 5801, this pair ranks #312,620 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of función vs funcionan

Shared letters: cfinu. Private to "función": ó. Private to "funcionan": ao.

"función" · 7 letters · shape CVCCVVC  ·  "funcionan" · 9 letters · shape CVCCVVCVC

Known mistypes of this pair

  • funcionanffuncionan · fnucionan · fucnionan · funccionan · funcinoan · funcioann · funcionann · funcionnan

Frequently Asked Questions

Can "función" and "funcionan" be used interchangeably?
No - they are not even the same part of speech. "función" is a noun and "funcionan" a verb, so a sentence built for one is usually ungrammatical with the other.
In ordinary Spanish text, does "función" or "funcionan" show up more?
"función" is the more common of the two: it sits at frequency rank #1,196 in our Spanish list, against #4,605 for "funcionan". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

  • Full dictionary entry for "función" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "funcionan" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #312,620 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "función" and "funcionan" also get mixed up with nearby pairs, the highest-scored neighbour is "funcionan vs fusionan". 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 #312,620 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