efeitovseventoWhich spelling fits?

Which to use

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

#1,280
“efeito” frequency rank
#504
“evento” frequency rank
1784
confusion score

Side-by-Side Comparison

Feature efeito evento
Definition estado permanente provocado por uma ação; consequência, resultado acontecimento

Where the eye mixes efeito and evento

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.

6 ch
efeito
6 ch
evento

Why the eye confuses efeito with evento

A purely visual mix-up. efeito (/i.ˈfɐj.tu/) and evento (/i.ˈvẽ.tu/) 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 1784, derived from the frequency rank of both members and their visual similarity.

efeito is recorded at frequency rank #1,280, classified as anoun, pronounced /i.ˈfɐj.tu/. evento is at rank #504, tagged as anoun, pronounced /i.ˈvẽ.tu/.

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 1784, this pair ranks #73,724 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of efeito vs evento

Shared letters: eot. Private to "efeito": fi. Private to "evento": nv.

"efeito" · 6 letters · shape VCVVCV  ·  "evento" · 6 letters · shape VCVCCV

Known mistypes of this pair

  • efeitoeefito · efeiot · efeitto · efetio · effeito · efieto · feeito
  • eventoeevnto · evennto · evenot · eventto · evetno · evneto · evvento · veento

Frequently Asked Questions

Is swapping "efeito" for "evento" ever safe?
No. They are said differently (/i.ˈfɐj.tu/ versus /i.ˈvẽ.tu/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "efeito" or "evento"?
"evento" is the more common of the two: it sits at frequency rank #504 in our Portuguese list, against #1,280 for "efeito". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

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

  • Full dictionary entry for "efeito" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "evento" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #73,724 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "efeito" and "evento" also get mixed up with nearby pairs, the highest-scored neighbour is "ementa vs evento". 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 #73,724 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