funcionarvsfusionarWhich spelling fits?

Which to use

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

#3,412
“funcionar” frequency rank
#37,102
“fusionar” frequency rank
40514
confusion score

Side-by-Side Comparison

Feature funcionar fusionar
Definition Realizar la o las funciones para lo que una labor o un mecanismo fue concebido. Unir o fundir varias cosas distintas en una sola.

Where the eye mixes funcionar and fusionar

Muted = shared; highlighted = the visual trap. They share 7 letters in sequence.

9 ch
funcionar
8 ch
fusionar

Visual trap between funcionar and fusionar

A purely visual mix-up. funcionar ([fũnsjoˈnaɾ]) and fusionar ([fusjoˈnaɾ]) 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 1 letter(s) in length. Our composite confusion score for this pair is 40514, derived from the frequency rank of both members and their visual similarity.

funcionar is recorded at frequency rank #3,412, classified as averb, pronounced [fũnsjoˈnaɾ]. fusionar is at rank #37,102, tagged as averb, pronounced [fusjoˈnaɾ].

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 40514, this pair ranks #158,669 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of funcionar vs fusionar

Shared letters: afinoru. Private to "funcionar": c. Private to "fusionar": s.

"funcionar" · 9 letters · shape CVCCVVCVC  ·  "fusionar" · 8 letters · shape CVCVVCVC

Known mistypes of this pair

  • funcionarffuncionar · fnucionar · fucnionar · funccionar · funcinoar · funcioanr · funcionarr · funcionnar
  • fusionarffusionar · fsuionar · fucionar · fuisonar · fusinoar · fusioanr · fusionarr · fusionnar

Frequently Asked Questions

Do "funcionar" and "fusionar" mean the same thing in a sentence?
No. They are said differently ([fũnsjoˈnaɾ] versus [fusjoˈnaɾ]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "funcionar" or "fusionar"?
"funcionar" is the more common of the two: it sits at frequency rank #3,412 in our Spanish list, against #37,102 for "fusionar". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

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

  • Full dictionary entry for "funcionar" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "fusionar" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #158,669 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "funcionar" and "fusionar" also get mixed up with nearby pairs, the highest-scored neighbour is "fusionan vs fusionar". 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 #158,669 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