ilusãovsinclusãoWhat's the difference?

Which to use

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

#5,857
“ilusão” frequency rank
#3,775
“inclusão” frequency rank
9632
confusion score

Side-by-Side Comparison

Feature ilusão inclusão
Definition qualquer coisa que pareça ser algo que não é ato ou efeito de incluir

Where the eye mixes ilusão and inclusão

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

6 ch
ilusão
8 ch
inclusão

Why the eye confuses ilusão with inclusão

A purely visual mix-up. ilusão (/i.luˈzɐ̃w̃/) and inclusão (/ĩ.klu.ˈzɐ̃w̃/) 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 letter(s) in length. Our composite confusion score for this pair is 9632, derived from the frequency rank of both members and their visual similarity.

ilusão is recorded at frequency rank #5,857, classified as anoun, pronounced /i.luˈzɐ̃w̃/. inclusão is at rank #3,775, tagged as anoun, pronounced /ĩ.klu.ˈzɐ̃w̃/.

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 9632, this pair ranks #63,737 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of ilusão vs inclusão

Shared letters: ilosuã. Private to "ilusão": -. Private to "inclusão": cn.

"ilusão" · 6 letters · shape VCVCVV  ·  "inclusão" · 8 letters · shape VCCCVCVV

Frequently Asked Questions

Can "ilusão" and "inclusão" be used interchangeably?
No. They are said differently (/i.luˈzɐ̃w̃/ versus /ĩ.klu.ˈzɐ̃w̃/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "ilusão" vs "inclusão" - which ranks higher?
"inclusão" is the more common of the two: it sits at frequency rank #3,775 in our Portuguese list, against #5,857 for "ilusão". 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 "ilusão" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "inclusão" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #63,737 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "ilusão" and "inclusão" also get mixed up with nearby pairs, the highest-scored neighbour is "ilusão vs infusão". Nearby pair

Confusion rank #63,737 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