complicaçãovscomunicaçãoWhich spelling fits?

Which to use

“complicação” and “comunicação” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#21,968
“complicação” frequency rank
#738
“comunicação” frequency rank
22706
confusion score

Side-by-Side Comparison

Feature complicação comunicação
Definition ato ou efeito de complicar ato ou efeito de comunicar(-se)

Where the eye mixes complicação and comunicação

Muted = shared; highlighted = the visual trap. They share 9 letters in sequence. complicação (CVCCCVCVCVV) and comunicação (CVCVCVCVCVV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

11 ch
complicação
11 ch
comunicação

Visual trap between complicação and comunicação

A purely visual mix-up. complicação (/kõ.pli.kɐ.ˈsɐ̃w̃/) and comunicação (/ku.mu.ni.kɐ.ˈsɐ̃w̃/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 22706, derived from the frequency rank of both members and their visual similarity.

complicação is recorded at frequency rank #21,968, classified as anoun, pronounced /kõ.pli.kɐ.ˈsɐ̃w̃/. comunicação is at rank #738, tagged as anoun, pronounced /ku.mu.ni.kɐ.ˈsɐ̃w̃/.

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 22706, this pair ranks #47,281 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of complicação vs comunicação

Shared letters: acimoãç. Private to "complicação": lp. Private to "comunicação": nu.

"complicação" · 11 letters · shape CVCCCVCVCVV  ·  "comunicação" · 11 letters · shape CVCVCVCVCVV

Frequently Asked Questions

Is swapping "complicação" for "comunicação" ever safe?
No. They are said differently (/kõ.pli.kɐ.ˈsɐ̃w̃/ versus /ku.mu.ni.kɐ.ˈsɐ̃w̃/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary Portuguese text, does "complicação" or "comunicação" show up more?
"comunicação" is the more common of the two: it sits at frequency rank #738 in our Portuguese list, against #21,968 for "complicação". 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 "complicação" and "comunicação" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "complicação" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "comunicação" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #47,281 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "complicação" and "comunicação" also get mixed up with nearby pairs, the highest-scored neighbour is "compilação vs complicação". Nearby pair

Confusion rank #47,281 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list