Which to use
“extinção” is a noun and “extinto” is an adjective - they look or sound alike but fill different roles in a sentence.
- #4,233
- “extinção” frequency rank
- #14,137
- “extinto” frequency rank
- 18370
- confusion score
Side-by-Side Comparison
| Feature | extinção | extinto |
|---|---|---|
| Definition | ato ou efeito de extinguir(-se); eliminação total | que se extinguiu |
Where the eye mixes extinção and extinto
Muted = shared; highlighted = the visual trap. They share 6 letters in sequence. extinção runs 8 letters (VCCVCCVV) against extinto's 7 (VCCVCCV) - the length gap alone is often enough to separate them once you know to check it.
Why the eye confuses extinção with extinto
These two trip readers on the page rather than in the ear: extinção is /ɐjʃ.tĩ.ˈsɐ̃w̃/ while extinto is /ɐjʃ.ˈtĩ.tu/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 18370, derived from the frequency rank of both members and their visual similarity.
extinção is recorded at frequency rank #4,233, classified as anoun, pronounced /ɐjʃ.tĩ.ˈsɐ̃w̃/. extinto is at rank #14,137, tagged as anadj, pronounced /ɐjʃ.ˈtĩ.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 18370, this pair ranks #52,630 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of extinção vs extinto
Shared letters: einotx. Private to "extinção": ãç. Private to "extinto": -.
"extinção" · 8 letters · shape VCCVCCVV · "extinto" · 7 letters · shape VCCVCCV
Known mistypes of this pair
- extinto ← etxinto · exitnto · extinnto · extinot · extintto · extitno · extnito · exttinto
Frequently Asked Questions
Can "extinção" and "extinto" be used interchangeably?
Frequency check: "extinção" vs "extinto" - which ranks higher?
What to do next
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "extinção" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "extinto" - compare definitions side by side with the headword page. Word entry
- This pair ranks #52,630 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "extinção" and "extinto" also get mixed up with nearby pairs, the highest-scored neighbour is "extinto vs extintor". 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 #52,630 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.