documentarvsdocumentoWhat's the difference?

Quick tell: documentar is a verb, documento is a noun, so they fill different roles in a sentence.

Which to use

“documentar” is a verb and “documento” is a noun - they look or sound alike but fill different roles in a sentence.

#20,857
“documentar” frequency rank
#1,971
“documento” frequency rank
22828
confusion score

Side-by-Side Comparison

Feature documentar documento
Definition fundar, provar com documentos qualquer registro de informações, independentemente do formato ou suporte

Where the eye mixes documentar and documento

Muted = shared; highlighted = the visual trap. They share 8 letters in sequence.

10 ch
documentar
9 ch
documento

Visual trap between documentar and documento

These two trip readers on the page rather than in the ear: documentar is /du.ku.mẽ.ˈtaɾ/ while documento is /du.ku.ˈmẽ.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 (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 22828, derived from the frequency rank of both members and their visual similarity.

documentar is recorded at frequency rank #20,857, classified as averb, pronounced /du.ku.mẽ.ˈtaɾ/. documento is at rank #1,971, tagged as anoun, pronounced /du.ku.ˈmẽ.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 22828, this pair ranks #47,129 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of documentar vs documento

Shared letters: cdemnotu. Private to "documentar": ar. Private to "documento": -.

"documentar" · 10 letters · shape CVCVCVCCVC  ·  "documento" · 9 letters · shape CVCVCVCCV

Known mistypes of this pair

  • documentardcoumentar · ddocumentar · doccumentar · docmuentar · docuemntar · documenatr · documenntar · documentarr
  • documentodcoumento · ddocumento · doccumento · docmuento · docuemnto · documennto · documenot · documentto

Frequently Asked Questions

Can "documentar" and "documento" be used interchangeably?
No - they are not even the same part of speech. "documentar" is a verb and "documento" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary Portuguese text, does "documentar" or "documento" show up more?
"documento" is the more common of the two: it sits at frequency rank #1,971 in our Portuguese list, against #20,857 for "documentar". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

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

  • Full dictionary entry for "documentar" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "documento" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #47,129 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "documentar" and "documento" also get mixed up with nearby pairs, the highest-scored neighbour is "documental vs documentar". 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 #47,129 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