Which to use
“tainha” is a noun and “trinta” is an adjective - they look or sound alike but fill different roles in a sentence.
- #47,633
- “tainha” frequency rank
- #3,047
- “trinta” frequency rank
- 50680
- confusion score
Side-by-Side Comparison
| Feature | tainha | trinta |
|---|---|---|
| Definition | peixe da família dos mugilídeos, também chamado fataça, mugem, etc. | número equivalente a três dezenas; cardinalidade de um conjunto que contenha três dezenas de elementos distintos; representado pelo símbolo 30 (algarismos arábicos) ou XXX (algarismos romanos) |
Where the eye mixes tainha and trinta
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. tainha (CVVCCV) and trinta (CCVCCV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.
Why the eye confuses tainha with trinta
These two trip readers on the page rather than in the ear: tainha is /tɐ.ˈi.ɲɐ/ while trinta is /ˈtɾĩ.tɐ/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 50680, derived from the frequency rank of both members and their visual similarity.
tainha is recorded at frequency rank #47,633, classified as anoun, pronounced /tɐ.ˈi.ɲɐ/. trinta is at rank #3,047, tagged as anadj, pronounced /ˈtɾĩ.tɐ/.
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 50680, this pair ranks #14,273 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.
Orthographic DNA of tainha vs trinta
Shared letters: aint. Private to "tainha": h. Private to "trinta": r.
"tainha" · 6 letters · shape CVVCCV · "trinta" · 6 letters · shape CCVCCV
Known mistypes of this pair
Frequently Asked Questions
Is swapping "tainha" for "trinta" ever safe?
Which is more common, "tainha" or "trinta"?
Useful next steps
Eye-level mix-up between "tainha" and "trinta" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "tainha" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "trinta" - compare definitions side by side with the headword page. Word entry
- This pair ranks #14,273 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "tainha" and "trinta" also get mixed up with nearby pairs, the highest-scored neighbour is "tainha vs trinca". 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 #14,273 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.