artigovsativoWhat's the difference?

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

Which to use

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

#683
“artigo” frequency rank
#3,881
“ativo” frequency rank
4564
confusion score

Side-by-Side Comparison

Feature artigo ativo
Definition palavra que precede os substantivos para os determinar diligente, expedito

Where the eye mixes artigo and ativo

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. artigo runs 6 letters (VCCVCV) against ativo's 5 (VCVCV) - the length gap alone is often enough to separate them once you know to check it.

6 ch
artigo
5 ch
ativo

Look-alike desk: artigo vs ativo

These two trip readers on the page rather than in the ear: artigo is /ɐɾ.ˈti.ɡu/ while ativo is /a.ˈʧi.vu/. 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 4564, derived from the frequency rank of both members and their visual similarity.

artigo is recorded at frequency rank #683, classified as anoun, pronounced /ɐɾ.ˈti.ɡu/. ativo is at rank #3,881, tagged as anadj, pronounced /a.ˈʧi.vu/.

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 4564, this pair ranks #70,305 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of artigo vs ativo

Shared letters: aiot. Private to "artigo": gr. Private to "ativo": v.

"artigo" · 6 letters · shape VCCVCV  ·  "ativo" · 5 letters · shape VCVCV

Known mistypes of this pair

  • artigo ← aritgo · arrtigo · artgio · artiggo · artiog · arttigo · atrigo · ratigo
  • ativo ← aitvo · atiov · ativvo · attivo · atvio · taivo

Frequently Asked Questions

Is swapping "artigo" for "ativo" ever safe?
No - they are not even the same part of speech. "artigo" is a noun and "ativo" an adjective, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "artigo" vs "ativo" - which ranks higher?
"artigo" is the more common of the two: it sits at frequency rank #683 in our Portuguese list, against #3,881 for "ativo". 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 "artigo" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "ativo" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #70,305 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "artigo" and "ativo" also get mixed up with nearby pairs, the highest-scored neighbour is "aipo vs ativo". 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 #70,305 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