tributaçãovstributárioWhich spelling fits?

Quick tell: tributação is a noun, tributário is an adjective, so they fill different roles in a sentence.

Which to use

“tributação” is a noun and “tributário” is an adjective - they look or sound alike but fill different roles in a sentence.

#23,852
“tributação” frequency rank
#20,458
“tributário” frequency rank
44310
confusion score

Side-by-Side Comparison

Feature tributação tributário
Definition ato ou efeito de tributar; taxação relativo a tributos (impostos)

Letter map: tributação vs tributário

Shared letters muted; letters that set tributação and tributário apart highlighted. Shared run: 7. tributação and tributário follow the identical consonant-vowel pattern (CCVCVCVCVV). Same shape at a glance is often the real trap, independent of shared letters.

10 ch
tributação
10 ch
tributário

Part-of-speech tell for tributação / tributário

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: tributação is anoun and tributárioanadjective. On the page they share most of their letters but differ in 3 positions. Our composite confusion score for this pair is 44310, derived from the frequency rank of both members and their visual similarity.

tributação is recorded at frequency rank #23,852, classified as anoun, pronounced /tɾi.bu.tɐ.ˈsɐ̃w̃/. tributário is at rank #20,458, tagged as anadj.

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 44310, this pair ranks #21,187 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of tributação vs tributário

Shared letters: biortu. Private to "tributação": aãç. Private to "tributário": á.

"tributação" · 10 letters · shape CCVCVCVCVV  ·  "tributário" · 10 letters · shape CCVCVCVCVV

Frequently Asked Questions

Is swapping "tributação" for "tributário" ever safe?
No - they are not even the same part of speech. "tributação" is a noun and "tributário" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "tributação" or "tributário"?
"tributário" is the more common of the two: it sits at frequency rank #20,458 in our Portuguese list, against #23,852 for "tributação". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pair "tributação" vs "tributário" is on the table, pick a follow-up below.

  • Full dictionary entry for "tributação" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "tributário" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #21,187 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "tributação" and "tributário" also get mixed up with nearby pairs, the highest-scored neighbour is "tributação vs tripulação". Nearby pair

Confusion rank #21,187 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